"GYM IS THERAPY"
Exercise is important for everyone, especially individuals with mental illness – it not only boosts our mood, concentration and alertness, but improves our cardiovascular and overall physical health.
Exercise causes your brain to release 'feel good' chemicals like endorphins and serotonin that help improve your mood. It also improves your fitness, which can help lift your mood. Doing physical activity can also distract you from negative thought patterns.
-National Institute of Health for more info.