How do wrestlers not get dizzy?

These poor sweaty lads are all over the place. Boinging off one rope and then the other, doing flips and spins and twirls and all sorts. And they still manage to stand up at the end. At least one of them does. The other fella has to pretend he's hurt, poor lamb.

You might think climate change, but this is wrestling from 1998 and I remember the 90s quite well and dizziness still worked the same then. It's gotta be the 'roids

Also a lot of them are dead now.