Is running much harder on the body than other exercises?

Question

Here I am again with another running question.

I have exercised all my life but this running is kicking my butt!!

Also, when does the "endorphin" thing kick in?

Thanks!

Answer 1

it might be and might not. running makes u work ur knees heart and lungs. but running is the healthiest exercise in my opinion

Answer 2

umm...i saw on the news people who run during their lifetime are 6 times less likely to need a knee replacement, and for runners high you have to run for a few months before you will ever feel that, and yes its worth the pushing yourself everyday.