[kotton05]

Originally Posted by khysanth [You must be logged in to view images. Log in or Register.]

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https://www.nytimes.com/2017/04/12/w...your-life.html

Running is the most natural thing we do. We were successful as a species because of our endurance hunting. Lots of things could outspeed us, but nothing could outlast us.

Yes it's natural but has a base impact into our spine that can create injuries. Along with our feet running really taxes us compared to an elliptical or bike...I won't say you're wrong .. just from an orthopaedic stand point there is better activities.