Scientists have for the first time found direct causal links between the neurotransmitter dopamine and avoidance -- behavior related to pain and fear. Researchers have long known that dopamine plays a key role in driving behavior related to pleasurable goals, such as food, sex and social interaction. In general, increasing dopamine boosts the drive toward these stimuli. But dopamine's role in allowing organisms to avoid negative events has remained mysterious.
Using drug repurposing, a team of researchers led by animal biologists at Nagoya University has discovered compounds that can either shorten or lengthen the circadian rhythm in human cells. A hormone, also known as a common anti-aging supplement demonstrated period-shortening activities, and when it was fed to mice, jet lag symptoms were significantly reduced.
Children who get less than the recommended amount of sleep for their age are at a higher risk of developing obesity. Research at the University of Warwick has found that children and adolescents who regularly sleep less than others of the same age gain more weight when they grow older and are more likely to become overweight or obese.
Medical cannabis and synthetic marijuana extracts should not be used for the treatment of obstructive sleep apnea, according to a position statement from the American Academy of Sleep Medicine (AASM).
A position statement from the American Academy of Sleep Medicine (AASM) concludes that fatigue and sleepiness are inherent safety risks in the ridesharing industry.
New research published in The Journal of Physiology has indicated why people with paralysis of their limbs and torso are more likely to suffer from sleep apnea. This knowledge could be used to develop much-need targeted therapies.
Losing just one night of sleep led to an immediate increase in beta-amyloid, a protein in the brain associated with Alzheimer's disease, according to a small, new study by researchers at the National Institutes of Health.
Neurocognitive impairment is frequently encountered in multiple sclerosis patients affecting between 40-65 percent of these individuals, irrespective of disease duration, severity of physical disability, and at both the earlier and later disease stages, with a tendency to worsen over time.
Night owls -- people who prefer to stay up late and sleep late -- have 10 percent higher risk of dying sooner than larks, people who go to bed early and rise early, reports a new study. This is the first study to show 'owls' have higher risk of mortality. Owls also suffer from more diseases and disorders than morning larks. Employers should allow greater flexibility in working hours for owls, scientists said.
A new study in SLEEP, published by Oxford University Press, indicates that delaying school start times results in students getting more sleep, and feeling better, even within societies where trading sleep for academic success is common.