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. Shaun told Business Insider that you shouldn't ...

As I was lacing up my sneakers to go for a jog at sunrise this morning, I glanced at the thermometer outside my front door with a sense of dread. It read -7° below zero. " Brrr!" was all I could say.

When it comes to workout motivation there's an internet full of tricks and tips to turn your dreams of working out to an actuality. But a lot of the touted motivation online can seem like it doesn't ...