Who was the very first gym bro? The first person to pick up a heavy rock, put it back down, pick it up again, and go "yeah, I'm gonna do that a few more times for some reason"? Did they hit a pump? Did they have a workout buddy to spot them on the boulder? We don't know, and we didn't look it up. This week we hunt for the original meathead — the first human to ever chase the gains — with the confidence of two guys who definitely skipped leg day to record this.

100% unverified. As always.

Got a "who did it first?" question? Mail it in.