"The groundwork of all happiness is health." - Leigh Hunt

Does the complete moon make us sleepy? A neurologist explains the science behind sleep, mood and lunar myths

Have you ever laid under a full moon and wondered if its glow was keeping you awake? For generations, people have believed that the moon has power Shake off sleepless nights and strange behavior – even self-obsession. The word “madness” comes directly from luna, Latin for moon.

Police officers, hospital staff and emergency staff often swear by it Their nights get busy under the full moon. But does science back it up?

The answer is, actually, way more vital than folklore. Research shows that a full moon can barely affect sleep, but has little effect on mental health.

I’m one A neurologist specializes in sleep medicine Who studies how sleep affects brain health? I find it fascinating that an ancient myth about moonlight and madness might trace something way more trivial: our restless, moonlit sleep.

What does a full moon really do to sleep?

Several studies show that individuals actually sleep in a different way in the times leading as much as the complete moon, when the moon shines brightly within the evening sky. During this era, people Sleep about 20 minutes lesstaking longer to go to sleep and Spend less time in deep, restorative sleep. Large population studies Verify the patternknowing that individuals in numerous cultures go to bed later and sleep for brief periods on the nights before the complete moon.

The almost definitely cause is mild. A brilliant moon within the evening Delay the body's internal clock, reduce melatonin – the hormone that signals bedtime – and keeps the brain more alert.

The changes are minor. Most people lose only 15 to half-hour of sleep, however the effect is measurable. This is Strongest in places without artificial lightequivalent to within the countryside or while camping. Some research suggests this too Men and women can be affected differently. For example, men appear to lose more sleep in the course of the waxing phase, while women experience barely less deep and restful sleep around the complete moon.

The lack of sleep from a brilliant moon is slight but measurable.
istock via Yulia Kevishnikova/Getty Images Plus

For centuries, people have blamed the complete moon for stirring up madness. Folklore suggests this It can be sparkly Mania in bipolar disorderfor , for , for , . Inducing seizures in people with epilepsy or trigger Psychosis in people with schizophrenia. The theory was easy: Lose sleep under a brilliant moon and weak minds might be exposed.

Modern science has added a very important twist. Research is obvious that sleep loss itself is a strong driver of mental health problems. Even a rough night can do it Increase anxiety and drag the mood. Sleep disturbance continues Increases the danger of depression, suicidal thoughts and flare-ups in conditions equivalent to bipolar disorder and schizophrenia.

It also means Minor sleep loss A full moon seen around could make a giant difference for people who find themselves already in danger. Someone with bulimia nervosa, for instance, may go away More sensitive to short or fragmented sleep More than the typical person

But here's the catch: When researchers step back and take a look at large groups of individuals, evidence that psychological crises are triggered by lunar phases. No reliable pattern has been found between the moon and hospital admission, discharge or length of stay.

But another studies suggest it could have smaller effects. In India, psychiatric hospitals recorded Overuse of restraints Based on data collected between 2016 and 2017, in the course of the full moon. In China, the researchers noted Slight increase in schizophrenia admissions Around the complete moon, using hospital records from 2012 to 2017. Still, these findings are usually not consistent worldwide and should reflect cultural aspects or local hospital practices as much as biology.

Finally, the moon can shave some time without work our sleep, and sleep loss can definitely affect mental health, especially for many who are more vulnerable. This includes individuals with conditions equivalent to depression, bipolar disorder, schizophrenia or epilepsy, and adolescents who’re particularly at risk of sleep disturbances. But the concept that the complete moon directly drives the tides of mental illness is more myth than fact.

https://www.youtube.com/watch?v=Q17I1SRJOQY

The sleep/wake cycle coincides with the lunar phases.

Other theories fall short

Over the years, scientists have explored other explanations for the lunar impact, Gravity pulls the “sea”. On the body Subtle geographic changes And A shift in barometric pressure. Yet, none of those mechanisms are under scrutiny.

The gravitational forces that move the oceans are too weak to affect human physiology, and studies of geographic and atmospheric changes during lunar phases have yielded inconsistent or negligible results. It disturbs sleep Night time light exposure The proudest link between the moon and human behavior.

Why the parable lives on

If science is so inconclusive, why accomplish that many individuals consider within the “full moon effect”? Psychologists point to an idea Alioserial Correlation. We take a look at and remember the bizarre nights that coincide with the complete moon but forget the numerous nights when nothing happened.

The moon can also be highly visible. Hidden sleep disruptors equivalent to Stressfor , for , for , . Caffeine or Scrolling on a phonethe moon is just within the sky, which is straightforward responsible.

A woman stares at her cell phone while lying in the dark.
Screen time habits are way more more likely to have detrimental effects on sleep than the complete moon.
Fan Pro/Moment via Getty Images

Lessons from the moon for contemporary sleep

Even if the moon doesn't make us “crazy,” its small influence on sleep highlights something vital: light at night.

Our bodies are designed to follow the natural cycle of sunshine and dark. Additional light within the evening, whether from moonlight, street lights or phone screens, May delay circadian rhythmsreduce melatonin and result in lighter, more fragmented sleep.

It helps explain the identical biology Health Risks of Daylight Saving Time. When the clocks “spring forward”, evenings are artificially lit. This shift delays sleep and disrupts circadian timing to a greater extent than the moon, resulting in increased accidents and cardiovascular risks, in addition to decreased workplace safety.

In our modern world, artificial light has a much greater effect on sleep than the moon. So many Sleep experts argue for a consistent standard timewhich is best than our biological rhythms.

So if you happen to end up restless on a full moon night, chances are you’ll not be imagining things—the moon may tug at your sleep. But if sleep deprivation is frequent, look closer to home. It's likely the lighting in your hand relatively than the sky is the wrongdoer.