Hair cracking, a viral trend that's made the rounds several times over the years, is making a comeback on TikTok. And that's not exactly a good thing. Hair cracking, also referred to as scalp popping, ...

Hanish, who goes by Dr. Cody, is a chiropractor based in Sydney, Australia. He started posting videos of his spinal manipulations — what he calls “crack videos” — on Instagram in late 2018. A post ...

When you get your back cracked — on camera no less — you never know what exclamation will tumble out of your mouth. That’s part of the fun of watching back cracking videos, which have taken Instagram ...