You may feel pain, but what about the gains?

Add Yahoo as a preferred source to see more of our stories on Google. As a personal trainer, even I dread doing this exercise and many of my clients do, too. However, they’re great for building ...

This as-told-to essay is based on a conversation with Ryan Peck. It has been edited for length and clarity. About eight years ago, I woke up one night, and I couldn't breathe. I was a fit, healthy ...