Exercise has been shown to improve your mood and decrease feelings of depression, anxiety, and stress (2Trusted Source).
It produces changes in the parts of the brain that regulate stress and anxiety. It can also increase brain sensitivity to the hormones serotonin and norepinephrine, which relieve feelings of depression (3Trusted Source).
Additionally, exercise can increase the production of endorphins, which are known to help produce positive feelings and reduce the perception of pain (Trusted Source3Trusted Source).
Interestingly, it doesn’t matter how intense your workout is. It seems that exercise can benefit your mood no matter the intensity of the physical activity.