Exercise for Depression: A Small Dose Goes a Long Way


In a new study, investigators wondered whether exercise can prevent new-onset depression or anxiety. To find out, a cohort of about 33,000 people with no mental health conditions were followed for an average of 11 years. Those who reported no exercise at baseline had 44% higher odds of developing depression compared with those who were exercising 1-2 hours a week. The researchers concluded that if everyone exercised at least 1 hour a week, 12% of the cases of depression that occurred could have been prevented.

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