Exercising 30 to 60 minutes three times a week improved healthy gut microbes in people even without dietary changes.

A twice-weekly yoga class lowered symptoms of depression in participants within eight weeks.

Walking, dancing, gardening and other physical activities significantly improve brain volume and lower the risk of Alzheimer’s disease.

Exercise such as brisk walking or jogging for 45 minutes protects not just the heart but the brain from age-related decline.

Weekly lessons in tai chi along with thrice-weekly home practice sessions significantly lowered depression in Boston Chinese-Americans.

People with mild cognitive impairment that exercised aerobically four times a week for six months had increases in overall brain volume and gray matter and enjoyed better cognitive functioning.

In two studies, regular yoga classes or individual practice lowered anxiety, depression and negative thoughts in people with eating disorders.

Young adult distance runners in Texas taking a powered tart cherry supplement for 10 days improved their running time and reported a third less muscle soreness.

Sedentary Canadian adults that underwent high-intensity interval training found it more enjoyable that those who performed ongoing moderate exercise.

Biking a half hour to work improves brain function, but if pollution hangs in the air, a moderate pace of 8 miles per hour tests best for overall health.