By Jeannine Stein, Los Angeles Times / For the Booster Shots blog 2:24 PM PST, November 23, 2011
Exercise now, sleep better tonight: A study finds that 150 minutes of exercise a week significantly improves sleep quality. About 3,000 adults age 18 to 85 wore an accelerometer for a week so researchers could determine just how much physical activity they were getting. Accelerometers not only measure movement but the intensity of that movement as well, making them a more comprehensive gauge of movement than a device such as a pedometer. Getting 150 minutes a week of moderate to vigorous exercise paid off in a 65% improvement in quality of sleep. Participants who were more active had significant improvements in feeling alert during the day and had fewer leg cramps compared with people who did not meet the 150-minute standard. The frequent exercisers also had an easier time concentrating when they were tired....
Link : latimes.com/health/boostershots/la-heb-sleep-exercise-20111123,0,3887445.story
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