I need it everyday. To keep me sane. It is my daily therapy. It clears my head, gives me the right outlook on the day ahead, keeps me calm, keeps me nice and keeps me centered.
I don't do it to for any other reason than the ones above.
All the other great perks are just a bonus (sleeping like a rockstar, fitting into my pants, keeping my blood pressure in check, and rosy cheeks).
Whatever you do, whatever speed, at the gym, on the pavement, in your home...it all counts.
You owe it to your well being to just move and be happy...everyday.