By Matt Fitzgerald

Master Your Monitor

You've got a heart-rate monitor, but do you know how to use it? With a little guidance you can tap into your monitor's full potential – and get closer to reaching your own.

- Nutrition -

Delving into Diets

They're hard to follow and easy to hate. Research suggests that most diets backfire in the long run, and some can even be hazardous to your health. Yet for some people, diets deliver decent results. So what gives? We explore what really makes diets effective when they do work — and what's to blame when they don't.