The latest in a long string of TikTok exercise variations has people swearing by the "6-6-6" routine. Walking trends have exploded across social media, from the 12-3-30 treadmill challenge to the rise ...

From crazy planks to 100-rep burnout sessions, I took on the internet’s wildest TikTok fitness challenges to see if they ...

As we approach the end of the year, we're encouraged to be better: lock in, transform, emerge unrecognizable. Push your limits by committing to a regimen with strict rules and challenging requirements ...