Sleeping with a television or light on in the room may be a risk factor for gaining weight or developing obesity, according to scientists.
A bad night's sleep may result in a spike in blood pressure that night and the following day, according to new research led by the University of Arizona. The study, to be published in Psychosomatic Medicine, offers one possible explanation for why sleep problems have been shown to increase the risk of heart attack, stroke and even death from cardiovascular disease.
Getting more exercise than normal -- or being more sedentary than usual -- for one day is enough to affect sleep later that night. Researchers found that when teenagers got more physical activity than they usually did, they got to sleep earlier, slept longer and slept better that night.
Preliminary results from a new study suggest that sleep disturbances are associated with mental health problems among survivors of a natural disaster even two years after the event.