He plays quarterback and plays that position like old school players, he's a statue. Go find a video of him running, it ain't pretty and he isn't fast. The gam

He plays quarterback and plays that position like old school players, he's a statue. Go find a video of him running, it ain't pretty and he isn't fast. The game has changed a bit too with less contact, especially for QB's. Defensive players will get called for many more penalties today than 15 years ago so that has worked in his favor later in his career. Some of his success should also be attributed to being with one of the best coaches of all time. Many of the teams he played on had a top defense which really helps in the NFL. And then there's luck that he hasn't had any major injuries. There have been other players professionally competent into their 40's but it is rare. I think a lot of it is just more knowledge about nutrition, health science, etc. Nolan Ryan in baseball was an anomoly as well, played for 27 years in a physically demanding position as a pitcher.