No Sweat: Small Doses of Exercise May Ward Off Depression

Anyone who has experienced the euphoric “runner’s high” that follows a satisfying workout will likely attest to a connection between physical activity and mental health. Studies have long borne this theory out: Endorphins, the opiate-like chemicals that flood the brain after intense or sustained exercise, appear to act as a buffer against depressive thoughts and feelings.

But you don’t have to train to the point of collapse to reap the benefits of this “mind-body” relationship: A new study from Australia finds that even small doses of exercise—as little as one hour per week—can elevate one’s mood, regardless of age or gender.


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