We challenged you on how well you know the ladies, and now it's the men's turn. How well do you know personal trainers to the stars (from left) FitSugar guest blogger David Kirsch, Gunnar Peterson, Harley Pasternak, and Jarett Del Bene? Take this quiz to find out!
How Well Do You Know Your Celebrity Personal Trainers?
Which trainer told us that one of the best ways to a fitter and healthier life is to "get more sleep"?