Exposure to artificial light while sleeping is associated with weight gain and an increased risk of obesity in women. Compared to those who slept without artificial light, those who slept with television or light on were 17% more likely to have an 11 pound or more increase in weight.
Sleep duration can have a negative impact on memory skills and reaction time. While the effects of sleep deprivation are well documented, researchers report sleeping for longer than the recommended 7 to 8 hours per night is associated with more errors in memory recall and slower reaction times, with each additional hour of sleep impacting performance more.
An uncommon variant of the PDE11A gene impacts both quality and duration of sleep. Genetic regions linked to sleep quality are also associated with serotonin production. The study also reveals those with the same hip circumference and a higher waist circumference sleep less, although the effect is small.
Researchers report sleeping less than six hours a night may increase your risk of developing cardiovascular disease compared to those who sleep the recommended eight hours per night.
Researchers report insufficient sleep is associated with unhealthy eating patterns, an increased risk of obesity and more screen time in school aged children.
While the effects of sleep deprivation are well known, researchers discover sleeping too much could have a detrimental effect on your brain. A new study reports sleeping more than eight hours per night can reduce cognitive ability and reasoning skills.
Binghampton University researchers report sleeping less than 8 hours a night can result in negative, repetitive thoughts associated with anxiety and depression.
NIH researchers have identified a set of genes they believe could explain why some people need more, or less, sleep that others. The findings could help to develop new treatments for a variety of sleep disorders from insomnia to narcolepsy.
A new study recommends different strategies, including removing digital devices before bedtime and embarking on calming activities to encourage healthy sleep in children and teens.