21 scientific facts that will motivate you to exercise

We get it, you already totally know you should exercise. But with family bags of Doritos that don't-eat-themselves and the world's imminent collapse, who wants to live forever?

Well it turns out there are much better reasons to exercise than living to 98 and becoming an alien-racist who asks your grandaughter, "What do you have to date one of them Martians for? I just think it's unnatural, is all." 

There are, in fact, 21 other reasons, that Business Insider has handily collated into a nice little infographic. Check 'em out below. 

(Images: Business Insider/iStock)