“He made the moon to mark the seasons; the sun knows its time for setting.”
— Psalm 104:19 (ESV)

By Jennifer Rae Vliet
From the very beginning, God designed creation with order, rhythm, and purpose including the moon, a faithful light in the night sky. While often admired for its beauty, the moon also plays a quiet but significant role in our daily lives. It not only governs the tides but also affects the rhythms of our bodies and emotions in ways we are still discovering. It is fascinating to explore how the moon, as part of God’s intricate design, influences us physically and emotionally. The moon is an important reminder that even the heavens declare His handiwork. I mean, come on, did you see the super moon the other night?
As believers, it’s essential to approach topics like the moon’s influence with wisdom and discernment. While scientific evidence suggests the moon may affect aspects of our physical and emotional rhythms, we must be careful not to assign it any spiritual power or control over our lives. God’s Word is clear: “You shall have no other gods before Me” (Exodus 20:3). Placing trust in lunar phases, astrology, or cosmic forces distracts from the truth that our well-being, body, mind, and spirit, is sustained by God alone. “Great is our Lord, and abundant in power; His understanding is beyond measure” (Psalm 147:5).
Creation may reflect God’s glory, but it is not to be worshiped or feared. Our peace comes not from the heavens above us, but from the One who reigns over them. The moon, in its faithful orbit, invites us to stand in awe of His wisdom and care!
With that said, I think this science paper shared by Ben Davidson from Suspicious Observers recently is worth the read and so very interesting! Enjoy!
The Influence of Natural Cycles on Human Cognitive Activity and Psychophysiological State
April 18, 2025 // DOI: 10.36074/grail-of-science.18.04.2025.113
Yaroslav Bondarenko, Karina Prosol, Oksana Kauk

Abstract
This scientific paper investigates the potential impact of natural cycles, with a particular emphasis on lunar phases, on human cognitive activity, productivity levels, and psychophysiological state. The study explores theoretical mechanisms behind these effects, drawing on insights from neurophysiology, endocrinology, and psychophysiology. The research highlights how gravitational and electromagnetic fluctuations during different lunar phases may influence hormonal balance, neurotransmitter activity, and overall brain function. The practical part of the study involved a comprehensive questionnaire survey conducted among 68 participants aged 18 to 50 years, who were free from significant somatic, neurological, or psychiatric conditions. Participants were observed over a complete lunar cycle (28–30 days) and reported changes in cognitive performance, emotional well-being, and sleep quality. Analysis of the collected data revealed notable patterns: the full moon phase was often linked to heightened nervous excitability, emotional instability, and disrupted sleep, while the new moon phase frequently correlated with reduced energy levels, fatigue, and cognitive slowdown. However, the findings also emphasized individual variability, with some respondents reporting no significant effects. The results underscore the complexity of biological responses to lunar cycles and highlight the need for further interdisciplinary research to identify precise physiological mechanisms. The study’s findings could have practical applications in developing strategies for optimizing productivity, managing stress, and improving sleep quality by aligning daily routines with natural biorhythms.
Relevance. Natural cycles play a key role in regulating human biological
processes, particularly influencing cognitive activity, productivity, and
2025
All rights reserved | Creative Commons Attribution-ShareAlike 4.0 International License
817
Міжнародний науковий журнал «Грааль науки» | № 51 (квітень, 2025)
ISSN 2710–3056
psychophysiological state. Among these cycles, the lunar cycle holds a special place,
traditionally considered one of the potential factors shaping physiological and
psycho-emotional responses of the body. Despite the absence of clearly established
mechanisms for this influence, numerous observations indicate a certain pattern in
changes in well-being, energy levels, attention concentration, and sleep quality
depending on the phases of the Moon. This necessitates a scientific analysis of
potential neurobiological, hormonal, and psychophysiological mechanisms that may
underlie these phenomena.
Turányi, C. Z., Rónai, K. Z., and Zoller, R. state that one of the key aspects of the
potential influence of the lunar cycle is its relationship with circadian rhythms [5]. It
is known that human circadian rhythms are regulated by the suprachiasmatic nuclei
of the hypothalamus, which coordinate the biological clock under the influence of
light stimuli. At the same time, researchers point to the possible modulation of these
rhythms due to changes in the intensity of moonlight, which may affect the secretion
of melatonin — the hormone responsible for sleep regulation. It has been proven
that during a full moon, some people experience a reduction in sleep duration and
depth, which may potentially affect cognitive functions and productivity levels
throughout the day. In addition to circadian rhythms, the influence of lunar phases
on hormonal balance is also considered. Raison, Klein, and Steckler note that
“disruptions in neurotransmitter levels, such as cortisol, serotonin, and dopamine,
can have a significant impact on emotional state, manifesting as anxiety and
depression” [8]. Changes in cortisol, serotonin, and dopamine levels are crucial
because these hormones are key regulators of mood, motivation, and cognitive
activity. An imbalance in these neurotransmitters can cause fluctuations in the
psycho-emotional state, observed both in healthy individuals and in patients with
mental disorders. According to Bondarenko, Y., & Mozgova, T. (2025), some studies
also suggest a possible link between lunar phases and the exacerbation of affective
disorders, increased anxiety levels, and a rise in psychiatric hospitalizations, although
the mechanisms behind these changes remain insufficiently studied [22].
Another potential factor influencing the lunar cycle is geophysical changes,
particularly microgravitational variations and fluctuations in the Earth’s magnetic
field, which may affect physiological processes in the body. In some of his
experimental works, Zimecki M. suggests that biological systems, particularly the
nervous and cardiovascular systems, may be sensitive to such changes, which could
theoretically explain periodic fluctuations in energy levels and productivity [10].
The relevance of this research is driven not only by scientific curiosity about
the phenomenon but also by its practical significance. If the influence of lunar phases
on cognitive activity and the psychophysiological state of a person is confirmed, it
could have important implications for optimizing work schedules, improving sleep
regulation, and developing recommendations for enhancing productivity.
Studying this issue requires an interdisciplinary approach that combines
neurophysiological, endocrinological, psychophysiological, and chronobiological
research methods.
Thus, analyzing the influence of the lunar cycle on cognitive processes and the
psycho-emotional state of a person is important from both a fundamental and
applied perspective. Research in this field may contribute to a better understanding
2025
РОЗДІЛ XXIII. МЕДИЧНІ НАУКИ ТА ГРОМАДСЬКЕ ЗДОРОВ’ Я
Авторські права захищені | Creative Commons Attribution-ShareAlike 4.0 International License
818
International scientific journal «Grail of Science» | № 51 (April, 2025)
ISSN 2710–3056
of human biological rhythms, their interaction with the external environment, and
the potential impact of natural cycles on health and productivity.
Although the Moon does indeed influence the physical environment around
the Earth, its impact on the human body through gravitational and electromagnetic
changes remains a topic of scientific debate. Some effects may be explained by
existing hypotheses, but additional research is needed to confirm them.
SECTION XXIII. MEDICAL SCIENCES AND PUBLIC HEALTH
Research Objective. To investigate the impact of natural cycles, particularly
lunar phases, on cognitive activity, productivity levels, and the psychophysiological
state of an individual, as well as to substantiate the theoretically possible
mechanisms of this influence from the perspectives of neurophysiology,
endocrinology, and psychophysiology. Specifically, the study aims to explore the
relationship between lunar phases and changes in cognitive functions, sleep quality,
and the psycho-emotional state of a person, while also assessing the potential
impact of these changes on productivity and daily well-being. The goal is to establish
the dependence of the aforementioned symptoms on the phases of the lunar cycle.
Materials and Methods. The study consisted of several stages, which involved
the collection, processing, and analysis of data using both quantitative and
qualitative analysis methods.
In the first stage, a detailed questionnaire was developed to assess the impact
of the lunar cycle on human well-being. The survey was conducted among voluntary
participants aged 18 to 50 years who had no somatic, neurological, or psychiatric
disorders that could independently affect their well-being. The main sections of the
questionnaire included information on socio-demographic characteristics, sleep
patterns, general level of cognitive activity, work capacity, psycho-emotional state,
and physical well-being. Participants were able to indicate whether they noticed
changes in their condition depending on the phases of the Moon, as well as specify
which symptoms they experienced during different periods of the lunar cycle. The
questionnaires were completed online via the Google Forms platform, ensuring
accessibility for a wide range of respondents. An important condition was that
participants were required to observe their state throughout a full lunar cycle (28
30 days), which allowed for the collection of more objective data.
In the second stage, a thorough analysis of scientific sources was conducted
to understand the theoretical mechanisms of the Moon’s phases’ influence on
physiological and cognitive processes in humans. The literature search was carried
out in the PubMed, ResearchGate, and Google Scholar databases, with a focus on
recent studies examining the role of the lunar cycle in regulating circadian rhythms,
hormonal balance, and psychophysiological changes. Special attention was given to
studies analyzing the relationship between lunar phases and hormone secretion,
particularly melatonin, cortisol, serotonin, and dopamine, as well as research
investigating neurophysiological changes during this period. Additionally, possible
geophysical factors such as changes in gravitational and magnetic fields that may
affect body functioning were considered.
In the third stage, the collected questionnaire data were analyzed. The primary
approach involved the use of descriptive statistics methods, which allowed for the
assessment of the frequency and intensity of changes in cognitive activity, work
capacity, and overall psychophysiological state in respondents depending on the
2025
All rights reserved | Creative Commons Attribution-ShareAlike 4.0 International License
819
Міжнародний науковий журнал «Грааль науки» | № 51 (квітень, 2025)
ISSN 2710–3056
lunar cycle. The analysis included calculating mean values, standard deviations, and
conducting a correlation analysis, which made it possible to identify potential links
between the Moon’s phases and changes in the participants’ conditions.
In the fourth stage, the obtained results were compared with contemporary
scientific data. This comparison helped identify patterns that could indicate a
genuine dependence of cognitive and psychophysiological changes on the lunar
cycle or provide alternative explanations for such changes based on other
influencing factors. Special attention was given to the analysis of neurophysiological
mechanisms that might explain variations in brain activity during different phases of
the lunar cycle, as well as the evaluation of hormonal changes that could affect
emotional state, work capacity, and overall well-being.
The obtained data will allow conclusions to be drawn about the reality of the
Moon’s phases influencing cognitive and psychophysiological processes, as well as
determine whether this influence is universal or dependent on individual
characteristics. If a connection is confirmed, the study may have practical significance
for developing recommendations on optimizing sleep, work, and rest schedules, as
well as for adjusting the psycho-emotional state during periods of increased
sensitivity.
Results. The Moon is the natural satellite of the Earth. The average distance to
Earth is about 384,400 km, but due to its elliptical orbit, it varies from 356,500 to
406,700 km. As the closest celestial body to Earth, the Moon has a gravitational
influence that determines tides. Besides oceans, this influence may also affect fluid
circulation in the human body.
Due to the lack of an atmosphere, the Moon’s surface is directly exposed to
the solar wind, which can lead to the formation of local magnetic anomalies.
Although the Moon does not have a global magnetic field, residual local magnetic
fields form due to magnetic minerals and, in certain areas, can exceed the strength
of Earth’s magnetic field. The Moon once had an active magnetic field, but over time,
it weakened [1].
When the solar wind reaches the Moon, it interacts with its surface, causing
the displacement of charged particles and leading to fluctuations in the magnetic
field, which may also have effects on Earth. Although these Moon-induced changes
in the electromagnetic environment are not significant in terms of geophysical
processes, they may affect biological organisms on Earth, including humans.
However, there is currently no scientific confirmation that these processes have a
significant impact on Earth’s electromagnetic environment, making this issue a
subject of debate.
Changes in the electromagnetic environment caused by the Moon’s magnetic
anomalies may influence human biorhythms. It has been observed that a full moon
may be associated with certain sleep disturbances, increased emotional reactivity, and
other psychophysiological changes. Additionally, the interaction of the solar wind with
the Moon’s magnetic anomalies may lead to changes in Earth’s magnetic field, which
could affect human health—especially those sensitive to electromagnetic fluctuations.
These effects may include migraines, cardiovascular issues, and other physiological
responses to magnetic storms. However, the scientific community has not reached a
consensus on this impact, and it remains an area for further research [2].
2025
РОЗДІЛ XXIII. МЕДИЧНІ НАУКИ ТА ГРОМАДСЬКЕ ЗДОРОВ’ Я
Авторські права захищені | Creative Commons Attribution-ShareAlike 4.0 International License
820
International scientific journal «Grail of Science» | № 51 (April, 2025)
ISSN 2710–3056
Local magnetic anomalies on the Moon can affect navigation systems that rely
on magnetic fields for orientation. While this does not significantly impact
conventional technologies on Earth, it may become crucial for future lunar missions,
particularly in the context of exploration and the use of technologies on its surface.
Although the Moon does not have its own global magnetic field, its local
magnetic anomalies and interactions with the solar wind influence the brain’s
bioelectrical activity, especially during a full moon. However, a proven mechanism
linking magnetic changes to the human nervous system is lacking, and these effects
remain hypothetical.
SECTION XXIII. MEDICAL SCIENCES AND PUBLIC HEALTH
During solar wind activity, magnetic variations may alter the potentials of nerve
cells, affecting sleep, stress levels, and vascular reactions. Depending on the lunar
phase, human sensitivity to magnetic storms and fluctuations in Earth’s
electromagnetic field may change, potentially causing headaches, increased fatigue,
attention disorders, and changes in heart rhythm.
One of the primary factors influencing the human body is the Moon’s
gravitational pull. The Moon’s gravitational field is the main cause of tidal phenomena
in the oceans. However, beyond the oceans, lunar gravity also affects other fluids
within the human body, including blood, lymph, and intercellular fluid [3].
Due to the Moon’s gravitational influence, certain changes in fluid circulation
within the human body can be observed, potentially leading to disruptions in
physiological processes. For example, during periods of high tides, when the Moon’s
gravitational force reaches its peak, changes in blood circulation may occur as blood
moves more rapidly through the cardiovascular system. This can affect blood
pressure levels and may trigger or exacerbate symptoms of cardiovascular diseases
in individuals predisposed to such conditions.
The lymphatic system is also influenced by the Moon’s gravity. Lymph circulates
more slowly than blood in the human body; however, gravitational fluctuations may
stimulate more active lymph movement, affecting the immune system—either
strengthening or weakening its functions depending on the specific lunar phase. For
instance, during a full moon, an increase in immune system activity has been
observed.
Regarding the Moon’s electromagnetic effects on humans, it has been found
that the Moon interacts with Earth’s electromagnetic environment. Each lunar phase
causes certain changes in Earth’s magnetic field, which, in turn, may trigger
physiological reactions in the human body. This influence occurs through
interactions with the solar wind and local magnetic anomalies, potentially affecting
the nervous and endocrine systems.
Lunar phases may also impact hormonal balance. During a full moon,
melatonin levels decrease, which can lead to sleep disturbances and increased
emotional excitability. In contrast, the new moon is often associated with improved
concentration and cognitive stability.
Nosенко O. M. and Demidchyk R. Ya., in their scientific work, emphasize that
melatonin (N-acetyl-5-methoxytryptamine) is a neurohormone synthesized from the
essential amino acid tryptophan. Its levels in the blood fluctuate throughout the day:
the highest concentration occurs at night, moderate levels in the morning, and the
lowest during the day. Light plays a crucial role in regulating its secretion, as
2025
All rights reserved | Creative Commons Attribution-ShareAlike 4.0 International License
821
Міжнародний науковий журнал «Грааль науки» | № 51 (квітень, 2025)
ISSN 2710–3056
exposure to light can shorten melatonin production duration and lower its levels in
the blood. Due to these properties, melatonin may serve as a biological marker of
chronodestruction [4].
Fluctuations in the magnetic field also affect cognitive functions: a full moon
may cause fatigue and distraction, whereas a new moon enhances attentiveness and
receptiveness to new information [4].
The Moon’s gravitational and electromagnetic influences on humans often
interact, creating complex effects on physiological and psycho-emotional processes.
For example, changes in fluid circulation and hormonal levels can amplify or mitigate
the effects caused by electromagnetic fluctuations. During high tides, when the
Moon’s gravitational impact is at its strongest, people may become more sensitive to
changes in Earth’s magnetic field, leading to intensified physiological and psycho
emotional reactions.
Thus, the Moon not only alters the physical environment around Earth but also
affects the human body, causing physiological and emotional changes through
gravitational and electromagnetic fluctuations. These effects can be particularly
strong during certain lunar phases and may vary depending on individual
characteristics of the organism.
Analyzing the dependence of changes in the human body on specific lunar
phases, we have reached the following conclusions:
New Moon – A Period of Reduced Energy Potential. The new moon phase is
characterized by the lowest gravitational influence of the Moon on Earth. During this
time, gravitational forces have the least effect, leading to a general decline in
physiological activity. One of the main manifestations of this phase is the reduction
of cellular energy potential, resulting in fatigue, apathy, and decreased overall
activity. The body does not receive enough energy to maintain high levels of physical
and mental performance. People may experience a significant drop in motivation for
daily tasks, which is a common characteristic of this phase [5].
From a physiological perspective, the new moon phase is often associated with
lowered blood pressure, a slowed heart rate, and general weakness. The body
requires more time for recovery and rest, as cellular and tissue regeneration
processes slow down. During this time, metabolic activity also decreases, which may
lead to weight gain or a feeling of heaviness [6].
Regarding cognitive function, the new moon can reduce the ability for deep
information processing, cause difficulties with concentration, and slow down
reaction times. During this period, individuals may find it more challenging to
perform mental tasks, especially those requiring problem-solving or important
decision-making. This is linked to a decrease in neurogenesis efficiency and slowed
brain activity due to reduced energy supply to the body.
Emotionally, people often experience mood changes, increased anxiety,
depressive states, or mood swings. These emotional fluctuations are caused by a
decrease in neurotransmitters such as serotonin, which is responsible for emotional
stability. Since the body lacks sufficient energy to maintain a stable emotional state,
individuals may be more prone to doubt, insecurity, and negative thoughts [7].
First Quarter – A Time for Increased Energy and Activity. As the first quarter of
the Moon begins, an increase in gravitational influence is observed, which
2025
РОЗДІЛ XXIII. МЕДИЧНІ НАУКИ ТА ГРОМАДСЬКЕ ЗДОРОВ’ Я
Авторські права захищені | Creative Commons Attribution-ShareAlike 4.0 International License
822
International scientific journal «Grail of Science» | № 51 (April, 2025)
ISSN 2710–3056
contributes to a rise in the body’s energetic activity. During this phase, the Moon
triggers the mobilization of bodily resources, leading to the activation of the
sympathetic nervous system. This system is responsible for physiological activity,
including an increase in energy levels, improved blood circulation, and enhanced
muscle tone.
SECTION XXIII. MEDICAL SCIENCES AND PUBLIC HEALTH
People during this period often experience a surge of strength, with their ability
to handle physical and mental challenges restored. The body becomes more
resilient, and individuals may feel more motivated and focused. This phase is
associated with enhanced metabolic function, making it an ideal time for physical
activity and productivity [8].
Physiologically, during the first quarter, blood pressure increases, improving
circulation and ensuring more efficient oxygen delivery to tissues. Muscles become
more toned, allowing a person to be more physically active. Metabolic processes are
activated, enabling the body to function more efficiently and expend energy to
sustain activity.
Cognitively, this period is characterized by an enhanced ability to concentrate
and improved cognitive functions. People become more capable of solving complex
problems, have better memory, and can make quick decisions. These changes also
manifest in overall improved productivity and increased motivation to complete
various tasks.
Emotionally, the increased energy in the body contributes to optimism,
improved mood, and an overall sense of well-being. During this time, people tend to
be more social, communicative, and eager to interact with others, participate in
events, achieve new goals, and work on personal development [9].
Full Moon – Increased Nervous Excitability and Emotional Fluctuations. The full
moon phase is a period of peak activity in the sympathetic nervous system, leading
to increased nervous excitability and emotional instability. Gravitational and
electromagnetic changes occurring during the full moon may influence the body and
contribute to higher stress levels, arousal, and nervousness. During this period, sleep
disturbances such as insomnia or shallow sleep are common, negatively impacting
the body’s physical recovery [10].
Physiologically, this period is accompanied by increased blood pressure,
pulsations in the head, and headaches. Heightened nervous excitability can lead to
physical symptoms such as hand tremors, increased sweating, and overall bodily
tension. Digestive problems may also be frequent, as elevated levels of stress
hormones negatively affect the gastrointestinal tract.
Cognitively, there is a tendency toward impulsive decision-making, where
individuals may act quickly without fully evaluating the consequences. This is due to
increased brain excitability, which may lead to errors in judgment. People may
become more irritable, and conflicts in relationships often arise due to a lack of
emotional control.
Emotionally, heightened nervous excitability leads to mood swings, including
increased anxiety, aggression, and irritability. People may experience significant
emotional surges that are difficult to control. Feelings of overwhelm or dissatisfaction
may also arise, as emotions do not always find healthy outlets.
Canadian researchers, led by Dr. Jean-Philippe Chaput from the Eastern
Ontario Research Institute, conducted a large-scale study involving 5,800 children
2025
All rights reserved | Creative Commons Attribution-ShareAlike 4.0 International License
823
Міжнародний науковий журнал «Грааль науки» | № 51 (квітень, 2025)
ISSN 2710–3056
aged 9 to 11 from various countries, including China, Finland, South Africa, India,
Australia, Brazil, Canada, Colombia, Kenya, the United Kingdom, and the United
States. To monitor physical activity and sleep quality, the participants were given
accelerometers—devices that function similarly to fitness trackers.
The study found that children’s activity levels remained almost unchanged
regardless of the moon phase. However, during the full moon, their sleep duration
decreased by an average of 5 minutes compared to the new moon. Scientists
suggest that this effect may be related to the increased brightness of the full moon,
although the exact mechanism of this influence has yet to be determined [11].
Last Quarter – A Time for Recovery and Decreased Activity. During the last
quarter phase of the moon, the body gradually transitions into a recovery phase. The
parasympathetic nervous system becomes more active, promoting overall
relaxation, reduced stress levels, and energy restoration.
Physiologically, this period is marked by lower blood pressure, a slowed heart
rate, and a reduced need for intense physical activity. The body begins to enter a
state of rest, preparing for the next cycle of energetic activity. People may feel a
greater need for rest, sleep, and relaxation.
Cognitively, this period is characterized by decreased mental activity, with
individuals experiencing mild fatigue or slower cognitive processes. At the same time,
there is an increased tendency for reflection and self-analysis, which can facilitate
awareness of important life decisions or changes. This is a time when many people
turn to self-discovery practices and inner development.
Emotionally, the last quarter of the moon often brings feelings of calmness,
balance, and recovery from previous emotional surges.
The moon, through its gravitational and electromagnetic influences on Earth,
can affect biochemical processes in the human body, particularly at the levels of
neurotransmitters. These neurotransmitters, such as melatonin, serotonin,
dopamine, and gamma-aminobutyric acid (GABA), play important roles in regulating
mood, physiological processes, sleep, and overall mental and physical well-being.
Lunar phases, especially the full moon and new moon, alter the Earth’s
electromagnetic field and gravitational influence, which in turn affects these
biochemical processes. Considering this, changes in neurotransmitter levels may be
linked to various psychophysiological changes occurring in the human body during
different moon phases [12].
Melatonin is a hormone produced in the pineal gland and is the primary
regulator of circadian rhythms, including sleep and wakefulness. It plays a crucial role
in sleep regulation by increasing drowsiness in the dark and reducing it in the light.
Since moonlight is a factor that alters environmental brightness, it can influence
melatonin production.
Additionally, during the full moon, changes in the Earth’s electromagnetic field
may reduce melatonin levels in the body. This phenomenon may be partly explained
by the fact that during the full moon, ambient light intensity increases, and moonlight
may have a similar effect on the nervous system as daylight. Since melatonin also
affects the nervous system and neurogenesis, its reduction can lead to sleep
disturbances, depressive states, and impaired cognitive functions such as memory
and concentration [13].
2025
РОЗДІЛ XXIII. МЕДИЧНІ НАУКИ ТА ГРОМАДСЬКЕ ЗДОРОВ’ Я
Авторські права захищені | Creative Commons Attribution-ShareAlike 4.0 International License
824
International scientific journal «Grail of Science» | № 51 (April, 2025)
ISSN 2710–3056
Melatonin is also closely related to cortisol, the stress hormone. Low melatonin
levels can lead to increased cortisol levels, which in turn raises anxiety, stress, and
depression, creating a vicious cycle between sleep disorders and psychological well
being. Disruptions in melatonin levels can also affect other aspects of
neurophysiology, such as brain neuroplasticity, making adaptation to stressful
conditions and cognitive recovery more difficult [14].
SECTION XXIII. MEDICAL SCIENCES AND PUBLIC HEALTH
Serotonin, a neurotransmitter that plays a key role in regulating mood,
emotions, appetite, and pain perception, also contributes to sleep regulation and a
sense of well-being. Its levels may fluctuate depending on the moon phases, with an
increase observed during the full moon. This may be due to changes in the
electromagnetic field that activate serotonin receptors in the brain. Elevated
serotonin levels can lead to heightened nervous excitability, hyperactivity, anxiety, or
even sleep disturbances [15].
From a neurological perspective, an increase in serotonin levels activates
neuronal pathways responsible for emotional state and motivation, affecting the
limbic system of the brain. However, this effect can be twofold: on the one hand,
elevated serotonin levels can contribute to mood improvement and reduce
depressive symptoms, while on the other hand, they may cause anxiety, excessive
excitability, or impaired concentration. Serotonin is also linked to dopamine and
noradrenaline systems, which may explain changes in motivation, behavioral
responses, and the ability to adapt to stressful situations.
Dopamine is an important neurotransmitter that regulates motivation,
pleasure, and motor activity. Increased dopamine levels may be observed during
periods of heightened emotional excitability, such as during a full moon. This may be
associated with the activation of dopaminergic pathways due to changes in the
electromagnetic field and the influence of the lunar phase on neural systems.
Increased dopamine activity can lead to emotional arousal, aggression, or
hyperactivity [16].
Neurologically, dopamine plays a crucial role in controlling motor functions.
Increased dopamine activity can lead to greater physical activity, impulsivity, and
heightened energy levels. However, excessive dopamine release may also have
negative consequences, such as impaired movement control and motor function
disruptions. Additionally, dopamine can influence insulin sensitivity, affecting
metabolic processes, particularly glucose metabolism.
GABA (gamma-aminobutyric acid) is the main inhibitory neurotransmitter that
reduces neuronal excitability and plays a key role in calming the nervous system,
regulating stress, and adapting to changes. It is known that GABA levels may
decrease during a full moon, leading to increased nervous excitability. This can result
in elevated stress levels, anxiety, sleep disturbances, and reduced ability to recover
from stressful situations.
From a neurophysiological perspective, a decrease in GABA levels may impair
brain neuroplasticity, making adaptation to new conditions and stressful situations
more difficult. This may also affect cognitive functions such as memory,
concentration, and learning ability.
To empirically verify the possible influence of lunar phases on cognitive activity,
work efficiency, and the psychophysiological state of individuals, we conducted a
sociological survey.
2025
All rights reserved | Creative Commons Attribution-ShareAlike 4.0 International License
825
Міжнародний науковий журнал «Грааль науки» | № 51 (квітень, 2025)
ISSN 2710–3056
The survey was conducted using online questionnaires, which allowed us to
collect data on participants’ subjective experiences regarding the influence of lunar
phases on their overall condition.
A total of 68 respondents participated in the study, including 48% women and
48% men. The age distribution of respondents showed that 48% were aged 18-25
years, while 35% were aged 26-35 years. The survey aimed to determine whether
people observe the influence of lunar phases on their cognitive activity, work
efficiency, physical condition, and emotional well-being.
Analysis of the collected data showed that 71% of respondents follow lunar
phases and notice certain changes in their well-being depending on the lunar cycle,
indicating a high level of interest in the potential influence of the lunar cycle on
humans.
Among the participants, 14.6% reported increased productivity during the new
moon, while 43.9% noted that they find it difficult to concentrate during the full
moon. At the same time, 41.5% of respondents did not observe any changes in their
task performance depending on lunar phases.
Regarding methods for improving efficiency at different points in the lunar
cycle, only 20% of respondents attempted to adapt their activities, such as starting
new projects during the new moon. Meanwhile, 70% stated that they do not consider
lunar phases when planning work, while 10% use relaxation techniques during the
full moon to reduce stress levels.
The study of changes in energy levels and motivation revealed that 15.8% of
respondents feel increased energy during the full moon, 31.6% noted that this effect
is inconsistent, while 52.6% do not experience any changes. Furthermore, 45.9% of
study participants reported increased stress levels or fatigue during certain lunar
phases, which may indicate a physiological reaction to the lunar cycle.
Assessment of sleep quality showed that 27.5% of respondents experienced
worsened sleep during certain lunar phases, 25% reported improved sleep, while
37.5% did not notice any changes. Analysis of emotional state fluctuations revealed
that 33.3% of study participants observe mood swings corresponding to lunar
phases, including 23.8% who reported mood declines, while 9.5% noted mood
improvements.
A detailed examination of observations regarding the full moon showed that
57.9% of respondents experience sleep difficulties during this period, 63.2% report
mood changes, 50% experience increased psychological tension, and 34.2% face
difficulties with concentration.
Analysis of the obtained results confirms that lunar phases may have some
impact on cognitive processes, work efficiency, physical condition, and the psycho
emotional state of individuals. The most significant changes were recorded during
the full moon when some respondents experienced sleep disturbances, increased
emotional excitability, mood changes, and concentration problems. However, a
significant portion of respondents did not report any changes, which may indicate
individual differences in perception or the influence of other factors.
The obtained data require further research to establish possible physiological
mechanisms of the lunar cycle’s impact on the human body. In particular, it is
necessary to analyze the correlation between hormonal fluctuations, circadian
2025
РОЗДІЛ XXIII. МЕДИЧНІ НАУКИ ТА ГРОМАДСЬКЕ ЗДОРОВ’ Я
Авторські права захищені | Creative Commons Attribution-ShareAlike 4.0 International License
826
International scientific journal «Grail of Science» | № 51 (April, 2025)
ISSN 2710–3056
rhythms, psychophysiological parameters, and external factors such as light intensity
and electromagnetic changes during the full moon.
Conclusions. The results of the study confirm that natural cycles, particularly
the phases of the Moon, may have a certain influence on cognitive activity,
productivity, and the psychophysiological state of individuals. Analysis of the
collected data revealed that the most significant changes occur during the full
moon—during this period, some respondents experience sleep disturbances,
increased psychological tension, mood changes, and decreased concentration.
SECTION XXIII. MEDICAL SCIENCES AND PUBLIC HEALTH
At the same time, a significant portion of respondents did not notice any
changes in their condition, indicating individual differences in the perception of the
lunar cycle. About 71% of respondents monitor the phases of the Moon, but only
20% take them into account when planning their activities or apply methods to
regulate their state.
Certain aspects, particularly the relationship between the lunar cycle and sleep
quality, stress levels, and cognitive functions, require further interdisciplinary
research. Future studies may help to clarify the biological mechanisms of this
influence and develop scientifically based recommendations for optimizing work and
rest schedules in accordance with natural rhythms.
The obtained results open up prospects for a more detailed analysis of the
interconnection between circadian rhythms, hormonal balance, and the impact of
external factors such as the intensity of moonlight, electromagnetic changes, and
their effect on the human nervous system.
References:
[1] Як Місяць впливає на Землю? // ProIT. – [Електронний ресурс]. – Режим доступу:
https://proit.com.ua/news/yak-misyats-vplyvaye-na-zemlyu/
[2] Ухань А. І. Визначення кутової орієнтації об’єктів низької динаміки: магістерська
дис.: 174 «Автоматизація, комп’ютерно-інтегровані технології та робототехніка» /
Ухань Андрій Ігорович. Київ, 2024. 99 с.
[3] Рудишин С. Д. Біогеохімія з основами екології : навч. посіб. / С. Д. Рудишин. Дніпро:
Середняк Т. К., 2023. 320 с.
[4] Носенко О. М., Демидчик Р. Я. Обмін мелатоніну в безплідних жінок із повторними
невдачами імплантації // 2024. С. 94-97.
[5] Turányi, C. Z., Rónai, K. Z., Zoller, R., Véber, O., Czira, M. E., Újszászi, Á., László, G.,
Szentkirályi, A., Dunai, A., Lindner, A., Szőcs, J. L., Becze, Á., Kelemen, A., Lendvai, Z.,
Molnar, M. Z., Mucsi, I., & Novák, M. (2014). Association between lunar phase and sleep
characteristics.
Sleep
medicine,
https://doi.org/10.1016/j.sleep.2014.06.020
in
15(11),
1411–1416.
[6] Della Monica, C., Atzori, G., & Dijk, D. J. (2015). Effects of lunar phase on sleep in men and
women
Surrey.
Journal
https://doi.org/10.1111/jsr.12312
of
sleep
research,
24(6),
687–694.
[7] Bunevicius, A., Gendvilaite, A., Deltuva, V. P., & Tamasauskas, A. (2017). The association
between lunar phase and intracranial aneurysm rupture: Myth or reality? Own data and
systematic review. BMC neurology, 17(1), 99. https://doi.org/10.1186/s12883-017-0879-1
[8] Raison, C. L., Klein, H. M., & Steckler, M. (1999). The moon and madness reconsidered.
Journal
of
affective
0327(99)00016-6
disorders,
53(1),
99–106. https://doi.org/10.1016/s0165
[9] Demler, T. L., Lysogorski, M. C., & Trigoboff, E. (2019). Exploring the Potential Psychiatric
Implications of Astronomical Phenomena. Innovations in clinical neuroscience, 16(1-2), 27–30.
2025
All rights reserved | Creative Commons Attribution-ShareAlike 4.0 International License
827
Міжнародний науковий журнал «Грааль науки» | № 51 (квітень, 2025)
ISSN 2710–3056
[10] Zimecki M. (2006). The lunar cycle: effects on human and animal behavior and
physiology. Postepy higieny i medycyny doswiadczalnej (Online), 60, 1–7.
[11] Chaput, J.-P., Weippert, M., LeBlanc, A. G…. “Are children like werewolves? Full moon and
its association with sleep and activity behaviors in an international sample of children.”
Frontiers in Pediatrics, 2016.
[12] Kalra, S., Bandgar, T., & Sahay, M. (2012). The sun, the moon, and renal endocrinology.
Indian
journal
of
endocrinology
and
metabolism,
16(2),
156–157.
https://doi.org/10.4103/2230-8210.93730
[13] Singh AK, Williams GH, editors. San Diego, CA: Elsevier Academic Press; 2009. Textbook
of Nephro-Endocrinology.
[14] Basso N, Terragno NA. History about the discovery of the renin-angiotensin system.
Hypertension. 2001;38:1246–9. – PubMed
[15] Medvei V. Lancaster: MTP Press; 1982. The history of endocrinology.
[16] Kalra S, Sahay M, Bandgar T. Renal endocrinology: The new frontier. Indian J Endocrinol
Metab. 2012;16:154–5. – PMC – PubMed
[17] Bloch H. Solartheology, heliotherapy, phototherapy, and biologic effects: A historical
overview. J Natl Med Assoc. 1990;82:517–21. – PMC – PubMed
[18] Koparal, M., Altuntaş, E. E., Yılmazer, C., Altunışık, E., & Karataş, M. (2022). Effects of the
Lunar Cycle, Seasons and the Meteorological Factors on Peripheral Vertigo. Turkish
archives of otorhinolaryngology, 60(3), 149–154. https://doi.org/10.4274/tao.2022.2022
6-12
[19] Martínez-Soriano, F., Ruiz-Torner, A., Armañanzas, E., & Valverde-Navarro, A. A. (2002).
Influence of light/dark, seasonal and lunar cycles on serum melatonin levels and synaptic
bodies number of the pineal gland of the rat. Histology and histopathology, 17(1), 213
222. https://doi.org/10.14670/HH-17.213
[20] Bhattacharjee, K., Pramanik, S., Chowdhury, S. D., Basu, B. R., & Mondal, L. K. (2023).
Effects of Lunar Phases on Foot Temperature, Oxidative Stress, and Inflammation in
Type 2 Diabetic Subjects. Endocrine, metabolic & immune disorders drug targets, 23(6),
832–842. https://doi.org/10.2174/1871530323666221205112054
[21] Bonmati-Carrion, M. A., Arguelles-Prieto, R., Martinez-Madrid, M. J., Reiter, R., Hardeland,
R., Rol, M. A., & Madrid, J. A. (2014). Protecting the Melatonin Rhythm through Circadian
Healthy Light Exposure. International Journal of Molecular Sciences, 15(12), 23448-23500.
https://doi.org/10.3390/ijms151223448
[22] Bondarenko , Y., & Mozgova , T. (2025). ANXIETY-DEPRESSIVE DISORDER IN PATIENTS
WITH BORDERLINE PERSONALITY DISORDER: CLINICAL MANIFESTATIONS, TRIGGERS,
AND EASING FACTORS. Collection of Scientific Papers «ΛΌГOΣ», (December 13, 2024;
Zurich, Switzerland), 391–396. https://doi.org/10.36074/logos-13.12.2024.08
ВПЛИВ ПРИРОДНИХ ЦИКЛІВ НА КОГНІТИВНУ АКТИВНІСТЬ
ЛЮДИНИ ТА ПСИХОФІЗІОЛОГІЧНИЙ СТАН
Бондаренко Ярослав
Студент III медичного факультету
Харківський національний медичний університет, Україна
Просол Каріна
Студент III медичного факультету
Харківський національний медичний університет, Україна
Науковий керівник: Каук Оксана
Кандидат медичних наук, доцент кафедри неврології
Харківський національний медичний університет, Україна
2025
РОЗДІЛ XXIII. МЕДИЧНІ НАУКИ ТА ГРОМАДСЬКЕ ЗДОРОВ’ Я
Авторські права захищені | Creative Commons Attribution-ShareAlike 4.0 International License
828
International scientific journal «Grail of Science» | № 51 (April, 2025)
ISSN 2710–3056
Анотація. У цій науковій роботі досліджується потенційний вплив природних циклів,
зокрема фаз Місяця, на когнітивну активність людини, рівень працездатності та
психофізіологічний стан. Робота аналізує теоретичні механізми цих впливів, опираючись
на дослідження нейрофізіології, ендокринології та психофізіології. Дослідження висвітлює,
як гравітаційні та електромагнітні коливання під час різних фаз Місяця можуть
впливати на гормональний баланс, активність нейромедіаторів та загальну функцію
мозку.
SECTION XXIII. MEDICAL SCIENCES AND PUBLIC HEALTH
Практична частина дослідження включала комплексне опитування серед 68 учасників
віком від 18 до 50 років, які не мали значних соматичних, неврологічних чи психічних
захворювань. Учасники були спостережені протягом повного місячного циклу (28–30 днів)
і повідомляли про зміни у когнітивній діяльності, емоційному стані та якості сну. Аналіз
зібраних даних виявив помітні закономірності: фаза повного Місяця часто була пов’язана
з підвищеною нервовою збудливістю, емоційною нестабільністю та порушеннями сну,
тоді як фаза нового Місяця зазвичай супроводжувалася зниженими рівнями енергії,
втомою та уповільненням когнітивної діяльності. Проте, результати також
підкреслюють індивідуальну змінність, оскільки деякі респонденти не зафіксували
значущих ефектів.
Отримані результати підкреслюють складність біологічних реакцій на місячні цикли та
наголошують на необхідності подальших міждисциплінарних досліджень для виявлення
точних фізіологічних механізмів. Результати дослідження можуть знайти практичне
застосування для розробки стратегій оптимізації продуктивності, управління стресом
та покращення якості сну шляхом узгодження повсякденних рутин із природними
біоритмами.
Ключові слова. Місячний цикл, когнітивна активність, психофізіологічний стан,
нейрофізіологія, ендокринологія, циркадні ритми, регуляція мелатоніну, коливання
серотоніну, динаміка дофаміну, гравітаційні ефекти, електромагнітні варіації, патерни
сну, емоційна стабільність, адаптація до стресу, біологічні ритми.
2025
All rights reserved | Creative Commons Attribution-ShareAlike 4.0 International License