Social media users are basing this on Wolff's law, formulated by German anatomist and surgeon Julius Wolff, which says that our bones are not completely inanimate structures and are rather constantly undergoing remodelling
The theory behind the so-called bone smashing is that bones will heal in a more desirable alignment after being broken. A Tiktoker tried using a massage gun to reshape his jawline (pictured left).
According to Forbes, videos with the phrase “bone smashing tutorial” have already garnered over 267.7 million views on TikTok. However, there is no evidence that hitting your face with blunt objects will do any good.