Mjölnir is heavy. Like, way heavy. Know why Thor can lift it? Because he got hella swole off prancersizing. Here's proof.

And this is that EveryDayThor seems a tad stiff when it comes to his form. Alas, not everyone can match the lady in the original video—but that's okay because who knows how ripped he would be if he could?

Prancercise: A Fitness Workout with Thor! [EveryDayThor via The Mary Sue]