Catalyst: How to Exercise Better 

We all know exercise is good for us. But how many of us really know what kind of exercise we should be doing, how much of it we need, or how hard we should push ourselves?

To find the answers, and help all of us live happier, healthier lives, GP Caroline West and cell biologist Shalin Naik are putting their bodies on the line at Australia's toughest athlete training facility: the Australian Institute of Sport. They'll be stealing the latest sports science secrets from the Formula Ones of fitness to help all of us get fitter and stay healthy.