Ever wonder what's going on inside your body as you adapt from training? Why some training sessions leave you feeling pumped up and alive, and others leave you lying on the couch without the energy to open the biscuit barrel?

Have you been unfortunate enough to train yourself into a hole, where no amount of extra training does anything but make you more tired, while your race results get more and more disappointing?

This week's guest, Dr. Will Mangar, might just have the answers for you.

As an accomplished time triallist (National Medal winner) and GB AG triathlete, not to mention the official doctor on the Tour of Britain, he knows his onions. His new company Indurance are the first to market in the UK - affordable blood testing, aimed at competitive AG athletes, so you know exactly what's going on, or what's going wrong - and you can do something about it!

Will has offered listeners of the show an EXTRA 5% discount. Simply email him at [email protected] and he'll personally reply with details. Awesome!