Can exercise help people treat depression? A study at the University of Texas evaluated 80 patients with mild to moderate depression, and placed them in five groups. The first four focused on exercising on various levels of intensity, while the fifth group didn’t exercise at all, according to a report by News FX.

After 12 weeks, the researchers found dramatic differences in those in the groups who exercised on a treadmill three times a week or more for 30 minutes or more at a time. This group had a 50 percent reduction in their depressive symptoms, while the groups that didn’t exercise at all or only mildly, saw a 29 percent reduction in symptoms.