Our lifestyle affects our mental health. And making positive lifestyle changes can greatly benefit us. (This infographic is from Psychology, 5th Edition, Chapter 14.)
Our distant ancestors lived mostly in a natural, outdoor environment. They were physically active during the day, and they slept at night. They cooperated with others to hunt and gather. Thus, our species is designed for a physically active, socially engaged, well-rested life with plenty of exposure to bright daytime light. Indeed, research shows that exercise, sleep, light exposure, and social connections all reduce depression.