Gym myths are my favorite. The best past is the extreme prevalence of survivorship bias, with most of the bad advice coming from people who have succeeded but are themselves mistaken about why.
i.e. Massive bro is adamant that everyone should be taking BCAAs, beginners are inclined to believe it because it looks like he knows what he’s talking about.
I think the fitness industry makes most of its money this way tbh
Britain has a Vagina Museum! They’re active on Mastodon too, actually. Top tier posters, highly recommend a follow