Japan has some crazy shows, but their Guinness World Records TV series is somehow the craziest. You think we’re kidding, but in one episode a man named Tomoharu Shoji sets a world record by crushing 43 nuts in one minute… Oh, yeah, and he did it just by using his butt.

As you can see, the more nuts you crack this way, the better ab muscles you get. What a workout.

[via BuzzFeed]