So, there is a tiny kernel of truth to the core concept here:

If you repeat a process of microfracturing a bone, letting it heal, doing it again... it can result in either reshaping or strengthening of the bone. It can also result in neither of those things happening.

In rare but real medical procedures you sometimes intentionally break a bone and the set it up to heal in a more proper configuration or orientation, or do this repeatedly to attempt to grow your leg length.

With many forms of martial arts it has been postulated that a lot of the seemingly super human acts of endurance of various kinds are partly possible because of years of microfractures which heal and make the bones stronger over time, along with the rest of the training regimen.

If I remember the evolution of this part of looks maxxing, originally it was people doing like 30 minutes of tapping various parts of their faces to attempt to do this to their facial bones, to extenuate them overtime.

Can't say I've ever seen any actual evidence this is any kind of real medical procedure.

But uh yeah, a good number of people seem to miss the idea of this being light and repetitive.... smashing yourself in the face with a hammer is not going to cause microfractures.

That'll cause much worse fractures. And possibly lots of other serious problems.

Oh well. Choke to death on marshmallows playing chubby bunny, poison yourself with tide pods, create a brain bleed and kill yourself via a hammer to the face. I wonder what the next thing will be.