If you need a reminder of how incredibly popular the Insanity workout — a super-hard, DVD-based workout created by celebrity fitness trainer and choreographer Shaun T— was back in the late 2000s, how ...
Add Yahoo as a preferred source to see more of our stories on Google. Photo credit: . In 2012, when Kristian Turner’s friends decided to do a Shaun T Insanity workout challenge. In preparing to join ...