This is what I found out by running cross country with anxiety issues. It was a constant battle between my mind, body, and the environment..just like any other runner would say. But with the anxiety....completing those miles meant so much to me.
12 Benefits of Running | I can attest to most of these :). One disclaimer: for someone my weight, 140 lbs, you need to be able to run a mile in under 7 minutes to burn 1,000 calories an hour (which I can't even come close to).