You probably already know this but now a new study has confirmed it...exercise improves sleep.
Researchers studied 2,600 men and women, ages 18-85, and concluded that at least 150 minutes of moderate to vigorous activity a week improved sleep quality by as much as 65 percent.
"We were using the physical activity guidelines set forth for cardiovascular health, but it appears that those guidelines might have a spillover effect to other areas of health," said Brad Cardinal, a professor of exercise science at Oregon State University and one of the study's authors.
People also said they felt more alert during the day if they got at least 150 minutes of exercise per week.
According to Medical News: "The study, out in the December issue of the journal Mental Health and Physical Activity, lends more evidence to mounting research showing the importance of exercise to a number of health factors. Among adults in the United States, about 35 to 40 percent of the population has problems with falling asleep or with daytime sleepiness."