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Melatonin, also known chemically as N-acetyl-5-methoxytryptamine, is a naturally occurring compound found in animals, plants, and microbes. In animals, circulating levels of the hormone melatonin vary in a daily cycle, thereby allowing the entrainment of the circadian rhythms of several biological functions.
Exposure to blue light may lead to eyestrain but does not damage retina

Exposure to blue light may lead to eyestrain but does not damage retina

Nearly 90 percent of adults use digital devices for two or more hours per day, according to The Vision Council's 2016 Digital Eye Strain Report, exposing consumers to blue light that some suggest is dangerous. [More]
Research: X and Y DNA swapping may occur more often than previously thought

Research: X and Y DNA swapping may occur more often than previously thought

It turns out that the rigid "line in the sand" over which the human sex chromosomes---the Y and X--- go to avoid crossing over is a bit blurrier than previously thought. Contrary to the current scientific consensus, Arizona State University assistant professor Melissa Wilson Sayres has led a research team that has shown that X and Y DNA swapping may occur much more often. [More]
Vanderbilt sleep specialist provides important tips for easing into seasonal time change

Vanderbilt sleep specialist provides important tips for easing into seasonal time change

The Monday after daylight saving time takes effect doesn't have to be a heart-stressed, mad-dash, car-crash kind of a day. [More]
Children taught at home get more sleep than others

Children taught at home get more sleep than others

A new study published in Behavioral Sleep Medicine shows that children who are taught at home get more sleep than those who go to private and public schools. The findings provide additional evidence of teens' altered biological clocks and support an argument for starting traditional high school later in the morning. [More]
National Bed Month: Five tips for a perfect sleep routine

National Bed Month: Five tips for a perfect sleep routine

This National Bed Month Sleep Practitioner & Sleep Environment Expert James Wilson has shared his five steps to a perfect sleep routine which includes using nature’s most effective relaxant… magnesium. [More]
Irregular sleep schedules linked to adverse metabolic health in midlife women

Irregular sleep schedules linked to adverse metabolic health in midlife women

A new study suggests that frequent shifts in sleep timing may be related to adverse metabolic health among non-shift working, midlife women. [More]
IU researchers discover hormonal mechanism that links short winter days with increased aggression in females

IU researchers discover hormonal mechanism that links short winter days with increased aggression in females

Indiana University researchers have discovered a hormonal mechanism in hamsters that connects short winter days with increased aggression in females, and that it differs from the mechanism that controls this same response in males. [More]
Treating insomnia through a CBT device? An interview with Dr Ebrahim

Treating insomnia through a CBT device? An interview with Dr Ebrahim

Insomnia refers to a clinical condition that is characterised by one or more of the following – difficulty initiating sleep and/or maintaining sleep and/or waking up too early AND associated with symptoms the next day such as sleepiness, lethargy, loss of concentration. [More]
Sleep loss reduces insulin sensitivity, increases diabetes risk

Sleep loss reduces insulin sensitivity, increases diabetes risk

A new study by the University of Colorado shows that the longer people are awake during the time their biological clock is telling them to sleep the worse their sensitivity to insulin, which is a precursor to diabetes. [More]
Lucimed offers Luminette light therapy glasses for people suffering from seasonally induced issues

Lucimed offers Luminette light therapy glasses for people suffering from seasonally induced issues

For millions of people, the arrivalof fall and winter are unwelcome events. A change in seasons often brings a change in their physical and mental health, due to fewer hours of sunlight. [More]
Melatonin and the circadian rhythm: an interview with Professor Kennaway, University of Adelaide

Melatonin and the circadian rhythm: an interview with Professor Kennaway, University of Adelaide

The production of melatonin is controlled by a part of the brain called the suprachiasmatic nucleus (SCN) and its timing fine-tuned by our exposure to light during the morning. [More]

AASM's new guideline provides updated recommendations for treatment of circadian rhythm sleep-wake disorders

A new clinical practice guideline published by the American Academy of Sleep Medicine provides clinicians with updated recommendations for the treatment of intrinsic circadian rhythm sleep-wake disorders (CRSWDs). [More]
Researchers explore how common genetic mutation influences effects of taking melatonin close to mealtime

Researchers explore how common genetic mutation influences effects of taking melatonin close to mealtime

Researchers from Brigham and Women's Hospital and the University of Murcia, Spain, have shed new light on why people who carry a common genetic mutation may be more at risk for developing type 2 diabetes. By carefully studying healthy subjects, researchers were able to chart the effect of melatonin supplements on blood sugar control. [More]
Melatonin hormone can help prevent cardiovascular disease risk in children born through ART

Melatonin hormone can help prevent cardiovascular disease risk in children born through ART

Studies are revealing that children born through assisted reproductive technologies (ART) have a higher risk of developing cardiovascular disease. The increased risk is due to changes in the expression of the genes important for vascular health. These studies suggest that the composition of the solutions in which embryo fertilization and culturing are done is to blame. [More]
New study reveals effect of light exposure at night on the biology of teen sleep

New study reveals effect of light exposure at night on the biology of teen sleep

A new study has an important implication for tweens and young teens as they head back to school: Taking a gadget to bed could really hurt their sleep. [More]
Researchers find effectiveness of ramelteon for treatment of sleep disturbances after TBI

Researchers find effectiveness of ramelteon for treatment of sleep disturbances after TBI

Kessler researchers found preliminary evidence for the effectiveness of ramelteon for the treatment of sleep disturbances after traumatic brain injury (TBI). The article, "Archives of Physical Medicine and Rehabilitation on May 28, 2015. Authors are Anthony Lequerica, PhD, and Nancy Chiaravalloti, PhD, of Kessler Foundation, Neil Jasey, MD, of Kessler Institute for Rehabilitation, and Jaclyn Portelli Tremont, MA, of Robert Wood Johnson Medical School, Rutgers University. [More]
New York Blue Light Symposium highlights three measures to counter consequences of artificial illumination

New York Blue Light Symposium highlights three measures to counter consequences of artificial illumination

The New York Blue Light Symposium convened in New York from June 26-27, 2015. The event was sponsored by the International Blue Light Society (Senior Representative: Kazuo Tsubota), which was founded to research and release findings on the effects of blue light on the human body. [More]
Light may just be the answer for solving sleep problems among lung cancer patients

Light may just be the answer for solving sleep problems among lung cancer patients

When you're having trouble sleeping, light is the last thing you assume you need. But according to a pilot study attempting to solve insomnia among lung cancer patients led by University at Buffalo sleep researcher Grace Dean, light may just be the answer. [More]
Researchers suggest link between solar storms and incidences of RA and GCA

Researchers suggest link between solar storms and incidences of RA and GCA

What began as a chat between husband and wife has evolved into an intriguing scientific discovery. The results, published in May in BMJ (formerly British Medical Journal) Open, show a "highly significant" correlation between periodic solar storms and incidences of rheumatoid arthritis (RA) and giant cell arteritis (GCA), two potentially debilitating autoimmune diseases. [More]

New study suggests that bright light after night shift may have potential to improve driving performance

A new study suggests that bright light at the end of a night shift may have potential as a countermeasure to improve driving performance, particularly for low light work environments and commutes that occur before dawn. [More]
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