I would like to support this argument with my own experience. Running, biking, lifting, camping, fasting, and generally suffering in a positive way has made me

I would like to support this argument with my own experience. Running, biking, lifting, camping, fasting, and generally suffering in a positive way has made me feel so much better. It's like my hind brain thinks I need to get out and hunt/gather or I'll starve to death and that involves the above ordeals. If I just eat and do nothing my brain thinks I'm going to end up destitute and starving or something.