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Does the full moon make us sleepless? A neurologist explains the science behind sleep, mood and lunar myths
Research indicates that the moon slightly affects sleep, particularly in the days leading up to a full moon, causing people to lose about 15 to 30 minutes of sleep. However, the direct connection between lunar phases and mental health issues remains largely unsupported by scientific data, with artificial light impacts being more significant.
Joanna Fong-Isariyawongse, University of Pittsburgh
Have you ever tossed and turned under a full moon and wondered if its glow was keeping you awake? For generations, people have believed that the Moon has the power to stir up sleepless nights and strange behavior – even madness itself. The word “lunacy” comes directly from luna, Latin for Moon.
Police officers, hospital staff and emergency workers often swear that their nights get busier under a full moon. But does science back that up?
The answer is, of course, more nuanced than folklore suggests. Research shows a full moon can modestly affect sleep, but its influence on mental health is much less certain.
I’m a neurologist specializing in sleep medicine who studies how sleep affects brain health. I find it captivating that an ancient myth about moonlight and madness might trace back to something far more ordinary: our restless, moonlit sleep.
What the full moon really does to sleep
Several studies show that people really do sleep differently in the days leading up to the full moon, when moonlight shines brightest in the evening sky. During this period, people sleep about 20 minutes less, take longer to fall asleep and spend less time in deep, restorative sleep. Large population studies confirm the pattern, finding that people across different cultures tend to go to bed later and sleep for shorter periods in the nights before a full moon.
The most likely reason is light. A bright moon in the evening can delay the body’s internal clock, reduce melatonin – the hormone that signals bedtime – and keep the brain more alert.
The changes are modest. Most people lose only 15 to 30 minutes of sleep, but the effect is measurable. It is strongest in places without artificial light, such as rural areas or while camping. Some research also suggests that men and women may be affected differently. For instance, men seem to lose more sleep during the waxing phase, while women experience slightly less deep and restful sleep around the full moon.
The link with mental health
For centuries, people have blamed the full moon for stirring up madness. Folklore suggested that its glow could spark mania in bipolar disorder, provoke seizures in people with epilepsy or trigger psychosis in those with schizophrenia. The theory was simple: lose sleep under a bright moon and vulnerable minds might unravel.
Modern science adds an important twist. Research is clear that sleep loss itself is a powerful driver of mental health problems. Even one rough night can heighten anxiety and drag down mood. Ongoing sleep disruption raises the risk of depression, suicidal thoughts and flare-ups of conditions like bipolar disorder and schizophrenia.
That means even the modest sleep loss seen around a full moon could matter more for people who are already at risk. Someone with bipolar disorder, for example, may be far more sensitive to shortened or fragmented sleep than the average person.
But here’s the catch: When researchers step back and look at large groups of people, the evidence that lunar phases trigger psychiatric crises is weak. No reliable pattern has been found between the Moon and hospital admissions, discharges or lengths of stay.
But a few other studies suggest there may be small effects. In India, psychiatric hospitals recorded more use of restraints during full moons, based on data collected between 2016 and 2017. In China, researchers noted a slight rise in schizophrenia admissions around the full moon, using hospital records from 2012 to 2017. Still, these findings are not consistent worldwide and may reflect cultural factors or local hospital practices as much as biology.
In the end, the Moon may shave a little time off our sleep, and sleep loss can certainly influence mental health, especially for people who are more vulnerable. That includes those with conditions like depression, bipolar disorder, schizophrenia or epilepsy, and teenagers who are especially sensitive to sleep disruption. But the idea that the full moon directly drives waves of psychiatric illness remains more myth than reality. https://www.youtube.com/embed/Q17i1srjOqY?wmode=transparent&start=0 The sleep/wake cycle is synchronized with lunar phases.
Other theories fall short
Over the years, scientists have explored other explanations for supposed lunar effects, from gravitational “tidal” pulls on the body to subtle geomagnetic changes and shifts in barometric pressure. Yet, none of these mechanisms hold up under scrutiny.
The gravitational forces that move oceans are far too weak to affect human physiology, and studies of geomagnetic and atmospheric changes during lunar phases have yielded inconsistent or negligible results. This makes sleep disruption from nighttime light exposure the most plausible link between the Moon and human behavior.
Why the myth lingers
If the science is so inconclusive, why do so many people believe in the “full moon effect”? Psychologists point to a concept called illusory correlation. We notice and remember the unusual nights that coincide with a full moon but forget the many nights when nothing happened.
The Moon is also highly visible. Unlike hidden sleep disruptors such as stress, caffeine or scrolling on a phone, the Moon is right there in the sky, easy to blame.
Lessons from the Moon for modern sleep
Even if the Moon does not drive us “mad,” its small influence on sleep highlights something important: Light at night matters.
Our bodies are designed to follow the natural cycle of light and dark. Extra light in the evening, whether from moonlight, streetlights or phone screens, can delay circadian rhythms, reduce melatonin and lead to lighter, more fragmented sleep.
This same biology helps explain the health risks of daylight saving time. When clocks “spring forward,” evenings stay artificially brighter. That shift delays sleep and disrupts circadian timing on a much larger scale than the Moon, contributing to increased accidents and cardiovascular risks, as well as reduced workplace safety.
In our modern world, artificial light has a much bigger impact on sleep than the Moon ever will. That is why many sleep experts argue for permanent standard time, which better matches our biological rhythms.
So if you find yourself restless on a full moon night, you may not be imagining things – the Moon can tug at your sleep. But if sleeplessness happens often, look closer to home. It is likely a culprit of the light in your hand rather than the one in the sky.
Joanna Fong-Isariyawongse, Associate Professor of Neurology, University of Pittsburgh
This article is republished from The Conversation under a Creative Commons license. Read the original article.
Last Updated on April 12, 2026 by Daily News Staff
Today, we’re undertaking important site maintenance to improve the performance and user experience of the Sleeves SPR Store while completing the merger with STM-STORE.
This transition marks a key step in streamlining our online shopping experience—bringing all merchandise under one unified platform. Our goal is to deliver a faster, more reliable, and more seamless store for our community.
What to Expect During Maintenance
As we work through this upgrade and integration process, visitors may notice:
- Temporary downtime on both Sleeves SPR Store and STM-STORE
- Intermittent access interruptions
- Ongoing updates and improvements behind the scenes
We understand that downtime can be inconvenient, and we appreciate your patience as we complete these upgrades.
Staying Informed
We’ll continue to keep you updated on our progress and notify you as key milestones are reached. Our team is working to complete this transition as efficiently as possible while ensuring everything runs smoothly once fully launched.
Thank You for Your Support
We’re grateful for your continued support as we improve and grow. This merger represents an exciting step forward, and we look forward to delivering an enhanced shopping experience very soon.
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Last Updated on April 11, 2026 by Daily News Staff
April 10, 2026 — NASA’s Artemis II crew has safely returned to Earth, marking the successful completion of the first crewed mission to the Moon’s vicinity in more than 50 years.
Credit: NASA/Joel Kowsky
The Orion spacecraft splashed down in the Pacific Ocean off the coast of California at 5:07 p.m. PDT, carrying NASA astronauts Reid Wiseman, Victor Glover, Christina Koch, and Canadian astronaut Jeremy Hansen back home after a nearly 10-day journey through deep space.
🚀 A Mission for the Record Books
During the mission, the crew traveled a total of 694,481 miles, reaching a maximum distance of 252,756 miles from Earth—farther than any humans have ever gone, surpassing the Apollo 13 record set in 1970.
Launched on April 1 aboard NASA’s powerful Space Launch System (SLS) rocket, Artemis II tested critical systems needed for future missions, including life support, navigation, and deep space communication.
🌕 Science, Exploration, and Stunning Views
While orbiting the Moon, the astronauts captured more than 7,000 images, including views of the lunar far side, a rare solar eclipse, and detailed observations of craters, lava flows, and surface features.
The mission also included scientific experiments to better understand how the human body responds to deep space conditions, helping prepare for longer missions to the Moon and Mars.
🛰️ Safe Return and Recovery
Following splashdown, recovery teams quickly reached the spacecraft and transported the crew by helicopter to the USS John P. Murtha for initial medical evaluations. The astronauts are expected to return to NASA’s Johnson Space Center for further assessments.
🌍 What Comes Next
With Artemis II complete, NASA is now turning its focus to Artemis III, the next mission aimed at landing astronauts on the Moon and establishing a long-term human presence.
The success of Artemis II marks a major step forward in humanity’s return to deep space—and the beginning of a new era of exploration.
For more information on NASA’s Artemis program, visit the official NASA website.
🔗 Source & Further Reading
- NASA Blog: Artemis II Flight Day 10 – Re-entry Live Updates
- NASA Artemis II Mission Overview
- NASA Artemis Program – Return to the Moon
- Orion Spacecraft Details and Technology
- NASA Image and Video Library (Artemis II Photos & Media)
Dive into “The Knowledge,” where curiosity meets clarity. This playlist, in collaboration with STMDailyNews.com, is designed for viewers who value historical accuracy and insightful learning. Our short videos, ranging from 30 seconds to a minute and a half, make complex subjects easy to grasp in no time. Covering everything from historical events to contemporary processes and entertainment, “The Knowledge” bridges the past with the present. In a world where information is abundant yet often misused, our series aims to guide you through the noise, preserving vital knowledge and truths that shape our lives today. Perfect for curious minds eager to discover the ‘why’ and ‘how’ of everything around us. Subscribe and join in as we explore the facts that matter. https://stmdailynews.com/the-knowledge/
Artemis II Astronauts Capture First Moon Flyby Images from Lunar Far Side
April 7, 2026 — NASA has released the first breathtaking images from the historic Artemis II mission, offering humanity a rare look at the Moon’s far side—including views never before seen by human eyes.
Captured during a seven-hour lunar flyby on April 6, the images were taken by astronauts aboard the Orion spacecraft as part of NASA’s first crewed mission to the Moon in more than 50 years.
🌕 A Historic View of the Moon
The newly released images reveal stunning details of the lunar surface, including impact craters, ancient lava flows, and fractured terrain that scientists will use to better understand the Moon’s geologic history.
Among the most remarkable visuals is a rare solar eclipse seen from space, where the Moon passes in front of the Sun, revealing the Sun’s outer corona. The images also captured an “earthset” and “earthrise”—moments where Earth appears to set and rise over the Moon’s horizon.
In one striking image, the Moon is backlit by the Sun, with Earth glowing at its edge, while distant planets like Saturn and Mars appear as bright points in the background.
📸 Thousands of Images, New Discoveries
The Artemis II crew—Reid Wiseman, Victor Glover, Christina Koch, and Canadian astronaut Jeremy Hansen—used a range of cameras to capture thousands of high-resolution images during the flyby.
In addition to photography, the astronauts reported observing six meteoroid impact flashes on the Moon’s surface, offering scientists a rare opportunity to study active lunar events in real time.
Researchers are now analyzing the images, audio, and telemetry data to refine their understanding of the Moon’s surface and compare findings with observations from Earth-based astronomers.
🔬 Science That Shapes the Future
According to NASA officials, the data collected during Artemis II will play a critical role in shaping future missions, including plans to establish a long-term human presence on the Moon.
“These images are not only visually stunning, but they are brimming with scientific value that will inspire generations to come,” said Dr. Nicky Fox, associate administrator for NASA’s Science Mission Directorate.
The mission also provides astronauts with a unique advantage—human observation. With four trained sets of eyes, the crew is able to analyze subtle differences in color, brightness, and texture across the lunar surface in ways robotic systems cannot.
🚀 More Than Halfway Home
Now more than halfway through its 10-day journey, Artemis II is heading back toward Earth. NASA is targeting a splashdown at 8:07 p.m. EDT on April 10 off the coast of San Diego.
Live coverage of the return will begin at 6:30 p.m. EDT on NASA+, with recovery teams ready to retrieve the crew and spacecraft following reentry.
🌍 A New Era of Exploration
The Artemis II mission marks a major step forward in NASA’s long-term vision of returning humans to the Moon and eventually sending astronauts to Mars.
With each image and data point sent back to Earth, the mission is not only rewriting the record books—but also expanding humanity’s understanding of our closest celestial neighbor.
Official Artemis II images are available through NASA’s digital platforms, including the Artemis Image Gallery and NASA Image and Video Library.
🔗 Related External Links
Explore official NASA resources and view the latest Artemis II Moon flyby images:
- NASA: Artemis II Mission Overview
- NASA Artemis Program (Return to the Moon)
- NASA Image and Video Library (Artemis II Photos)
- Artemis Image Gallery
- Orion Spacecraft Details
- Apollo 13 Mission History (Previous Distance Record)
Source: NASA Official Release – Artemis II Moon Flyby Images
Dive into “The Knowledge,” where curiosity meets clarity. This playlist, in collaboration with STMDailyNews.com, is designed for viewers who value historical accuracy and insightful learning. Our short videos, ranging from 30 seconds to a minute and a half, make complex subjects easy to grasp in no time. Covering everything from historical events to contemporary processes and entertainment, “The Knowledge” bridges the past with the present. In a world where information is abundant yet often misused, our series aims to guide you through the noise, preserving vital knowledge and truths that shape our lives today. Perfect for curious minds eager to discover the ‘why’ and ‘how’ of everything around us. Subscribe and join in as we explore the facts that matter. https://stmdailynews.com/the-knowledge/
