A study shows that frequent napping is associated with an elevated prevalence of type 2 diabetes and impaired fasting glucose in an older Chinese population.

Significant differences have been found in the sleep habits and attitudes of Asians, African-Americans, Hispanics and whites.

Not getting enough sleep does more damage than just leaving you with puffy eyes. It can cause fat to accumulate around your organs -- more dangerous, researchers say, than those pesky love handles and jiggly thighs.

Children with insomnia and shorter sleep duration had impaired modulation of heart rhythm during sleep, researchers report.

Psychologists have found that infants need adequate sleep, including regular naps, in order to effectively learn about the new world they live in.

If you see a student dozing in the library or a co-worker catching 40 winks in her cubicle, don't roll your eyes. New research shows that an hour's nap can dramatically boost and restore your brain power. Indeed, the findings suggest that a biphasic sleep schedule not only refreshes the mind, but can make you smarter.

Sudden Infant Death Syndrome (SIDS) continues to be the third leading cause of infant death, according to the Centers for Disease Control (CDC), despite a decline in SIDS that is associated with a rise in safe-sleep practices for newborns and infants. Researchers have identified that more than 96 percent of infants who died of SIDS were exposed to known risk factors, among them sleeping on their side or stomach, or exposure to tobacco smoke, and that 78 percent of SIDS cases contained multiple risk factors.

It is thought that the sleep disorder narcolepsy is an autoimmune disorder -- that is, it is caused by the individual's immune system attacking certain cells in the body -- but this had not been proven definitively. But now, researchers have now identified autoantibodies (immune molecules that target a natural protein in the body rather than a protein from an infectious agent) in narcolepsy patients.

Cognitive behavioral therapy for insomnia significantly improved sleep for patients with chronic neck or back pain and also reduced the extent to which pain interfered with their daily functioning, according to a new study.

Sleepiness at the wheel and poor sleep quality significantly increase the risk of motor vehicle accidents in adolescents.