Simulated effects of microgravity significantly affect rhythmicity and sleep in humans, a new study finds. Such disturbances could negatively affect the physiology and performance of astronauts in space ..read more

Biomedical engineering researchers have uncovered a previously unknown source of two key brain waves crucial for deep sleep: slow waves and sleep spindles. Traditionally believed to originate from one brain circuit linking the thalamus and cortex, the team's findings suggest that the axons in memory centers of the hippocampus play a role ..read more

A new review of research evidence has explored the key differences in how women and men sleep, variations in their body clocks, and how this affects their metabolism ..read more

Children and teens from racial and ethnic minority groups are disproportionately affected by persistent insomnia symptoms that begin in childhood and continue through young adulthood, according to a new study. This study is one of the first to look at how childhood insomnia symptoms evolve over the long-term and investigate how the trajectory of insomnia differs between racial and ethnic groups ..read more

Neuroscientists have established in recent decades the idea that some of each day's experiences are converted by the brain into permanent memories during sleep the same night. Now, a new study proposes a mechanism that determines which memories are tagged as important enough to linger in the brain until sleep makes them permanent ..read more

Sleeping fewer than seven hours is associated with a higher risk of developing high blood pressure over time, according to a new study ..read more

Do you ever find yourself longing for the energy and vitality of your younger years? Feeling young is not just a matter of perception it is actually related to objective health outcomes. Previous studies have shown that feeling younger than one s actual age is associated with longer, healthier lives. There is even support for subjective age to predict actual brain age, with those feeling younger having younger brains. Feeling sleepy can make you feel ten years older ..read more

Living on a greener street or having views of blue spaces from your home may help you sleep for longer. New research across 18 countries found that living on greener streets -- those with visible grass, trees, and vegetation -- is linked to better sleep ..read more

Researchers have discovered that some fish -- unlike humans -- do not need orexin to stay awake. This molecule was thought to be necessary for normal wake and sleep rhythms in vertebrates. Humans without orexin suffer from narcolepsy ..read more

A new study has identified a link between poor sleep and migraine attacks that suggests improving sleep health may diminish migraine attacks in people with migraine ..read more