A smartly designed exercise program will benefit your body and mind in innumerable ways.

The benefits of exercise on mental health are well documented. For example, one major study found that sedentary people are 44% more likely to be depressed. Another found that those with mild to moderate depression could get similar results to those obtained through antidepressants just by exercising for 90 minutes each week. The key appears to be the release of brain chemicals such as serotonin and dopamine, which help lift mood and combat stress.