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 ...
Shaun T. is the mind behind the viral "Insanity" workout. In his new book, "T is for Transformation," Shaun talks about what motivates him to exercise and what he does when his body doesn't need a ...