The WSJ reports:
"On a given day, students who exercised also tended to participate in more social and achievement activities than on days when they didn’t exercise, the study found, and they engaged in activities that tended to matter to them more.
In addition, exercise on one day predicted positive social activity on the next day, but not achievement activity.
The researchers also found that positive social and achievement activities on one day didn’t predict exercise on the next day.
The results support an approach to treating depression called behavioral activation."
