[Timpy]

There are conventional things that you're going to get a lot of comments about. My conventional thing is running. The hacky part is the endorphins you get.[1] Other than the hack, you constantly set goals and achieve them, it makes you feel good about yourself. Micro goals like "I'll make it to the end of the street without stopping," and larger goals like "I'll run 5 miles today." Positive reinforcement during the run, large feeling of accomplishment after.

[1]https://www.webmd.com/depression/guide/exercise-depression#1

[eagletusk]

"At every level, from the microcellular to the psychological, exercise not only wards off the ill effects of chronic stress; it can also reverse them. Studies show that if researchers exercise rats that have been chronically stressed, that activity makes the hippocampus grow back to its preshriveled state. The mechanisms by which exercise changes how we think and feel are so much more effective than donuts, medicines, and wine. When you say you feel less stressed out after you go for a swim, or even a fast walk, you are." -John J. Ratey, Spark: The Revolutionary New Science of Exercise and the Brain

And another

"we sometimes lose sight of the fact that the mind, brain, and body all influence one another. In addition to feeling good when you exercise, you feel good about yourself"

Reading this book opened a door out of depression for me using the prescribed medicine, which is exercise and definitely wasn't easy.