Exercise may improve sleep quality.

The Los Angeles Times (11/24, Stein) "Booster Shots" blog reported a study of 3,000 adults published online in the journal Mental Health and Physical Activity suggesting that "getting 150 minutes a week of moderate to vigorous exercise paid off in a 65% improvement in quality of sleep." Researchers suggested that "the scientific evidence is encouraging as regular physical activity may serve as a non-pharmaceutical alternative to improve sleep."