Santa Claus' bodyguard is coming to town ... to save none other than a not-so-jolly Old St. Nick (J.K. Simmons, who has never played jolly in his life). Want more movie news?

You get older, you lose muscle. Unless, that is, you put in the effort to get ripped in your 60s like J.K. Simmons has done. You get older, you shed testosterone, and lose muscle mass — about 1 ...