Bad Sleep Around Full Moon Is No Longer A Myth

The research group around Prof. Christian Cajochen of the Psychiatric Hospital of the University of Basel analyzed the sleep of over 30 volunteers in two age groups in the lab. While they were sleeping, the scientists monitored their brain patterns, eye movements and measured their hormone secretions. The findings suggest that even today, despite the comforts of modern life, humans still responds to the geophysical rhythms of the moon.

Short And Poor Sleep

The data show that both the subjective and the objective perception of the quality of sleep changed with the lunar cycles. Around full moon, brain activity in the areas related to deep sleep dropped by 30 percent. People also took five minutes longer to fall asleep and they overall slept for 20 minutes less. The volunteers felt as though their sleep had been poorer during full moon and they showed lower levels of melatonin, a hormone that regulates sleep and wake cycles. «This is the first reliable evidence that lunar rhythm can modulate sleep structure in humans», Cajochen says.

A Relic From The Past

According to the researchers, this circalunar rhythm might be a relic from past times, when the moon was responsible for synchronizing human behavior. This is well known for other animals, especially marine animals, where moon light coordinates reproduction behavior. Today, other influences of modern life, such as electric light, masked the moon’s influence on us. However, the study shows that in the controlled environment of the laboratory with a strict study protocol, the moon’s hold over us can be made visible and measurable again.

Original Citation
Christian Cajochen, Songül Altanay-Ekici, Mirjam Münch, Sylvia Frey, Vera Knoblauch, and Anna Wirz-Justice
Evidence that the Lunar Cycle Influences Human Sleep
Current Biology, August 05, 2013 issue | doi: 10.1016/j.cub.2013.06.029
Further Information
Prof. Dr. Christian Cajochen, Centre for Chronobiology, Psychiatric Hospital of the University of Basel, tel. +41 61 325 53 18, email: christian.cajochen@upkbs.ch

Weitere Informationen:

http://dx.doi.org/10.1016/j.cub.2013.06.029 – Abstract
http://www.chronobiology.ch/ – Centre for Chronobiology, Psychiatric Hospital of the University of Basel

Media Contact

Reto Caluori Universität Basel

More Information:

http://www.unibas.ch

All latest news from the category: Life Sciences and Chemistry

Articles and reports from the Life Sciences and chemistry area deal with applied and basic research into modern biology, chemistry and human medicine.

Valuable information can be found on a range of life sciences fields including bacteriology, biochemistry, bionics, bioinformatics, biophysics, biotechnology, genetics, geobotany, human biology, marine biology, microbiology, molecular biology, cellular biology, zoology, bioinorganic chemistry, microchemistry and environmental chemistry.

Back to home

Comments (0)

Write a comment

Newest articles

Results for control of pollutants in water

Brazilian scientists tested a simple and sustainable method for monitoring and degrading a mixture of polycyclic aromatic hydrocarbons, compounds present in fossil fuels and industrial waste. An article published in the journal Catalysis…

A tandem approach for better solar cells

Perovskite-based solar cells were first proved in 2009 to have excellent light-absorbing properties of methylammonium lead bromide and methylammonium lead iodide, collectively referred to as lead halide perovskites or, more…

The behavior of ant queens is shaped by their social environment

Specialization of ant queens as mere egg-layers is reversible / Queen behavioral specialization is initiated and maintained by the presence of workers. The queens in colonies of social insects, such…

Partners & Sponsors