Endorphins. The body's reward for making yourself do exercise. And they're FREE when you sign up to our RENEW programme. Which is also free. And it's specially designed for people who've had a cancer diagnosis. No matter how you might feel cancer has changed your fitness, our team of specialist trainers have got your back. They're with you every step of the way. Want to learn more? Head to www.trekstock.com and check out 'Be Active' in the main menu or check out the link in our stories.