Individuals who suffer from sleep-related disorders are up to three times more likely to die prematurely, and that risk increases if the sleep disorder is left untreated, a new study has found.

In the study, published in Sleep, researchers followed a random sample of 1,522 men and women between the ages of 30 and 60 who participated in the Wisconsin Sleep Cohort Study

Older women who either sleep too much or too little are at a greater risk of suffering from stroke, a new study shows. Researchers found that habitual sleep patterns in postmenopausal women could be important in determining the risk of ischemic stroke.

Researchers from Albert Einstein College of Medicine in New York City studied 93,676 postmenopausal women and found that those who regularly slept nine hours or more were 70 percent more likely to have an ischemic stroke, compared with women who slept seven hours a night

The controversial anti-obestity drug rimonabant, marketed as Acomplia, has been approved for National Health Service (NHS) use in the England and Wales. The National Institute for Healthcare and Clinical Excellence (NICE) has approved use of this diet drug in people who are clinically obese or people who are seriously overweight with complications such as diabetes.

The drug, made by Sanofi-Aventis, is approved for sale in Britain and elsewhere in the European Union but was rejected by a U.S. Food and Drug Administration panel in June 2007 because of concerns the drug increases the risk of depression and suicidal thoughts

People with obstructive sleep apnea suffer tissue loss in brain regions that can seriously affect memory, a team of researchers from the University of California Los Angeles have found.

After doing MRI scans for tissues on the underside of the brain called mammillary bodies, the team discovered 43 disease sufferers had 20 percent smaller mammillary bodies than 66 participants without the disease

Exposing dementia patients to about nine hours of daily bright light can significantly slow the progression of dementia, Dutch scientists are suggesting.

The relatively simple treatments, which reset the body's natural clock and the circadian rhythm, may ease some of the behavioral problems associated with dementia