How do we combat the innate desire to do things that are bad for us? Dr Harry Weisinger is a doctor and university professor who specialises in nutrition and recovery, with a focus on little changes that can make life healthier and happier - and hopefully last longer. As well as helping a whole range of athletes (and normal humans) to perform better, Harry uses his own body as a test tube, putting himself through the mill as a competitive cyclist who shows no signs of slowing down as he prepares to sprint past his 50th birthday.

Dr Harry is medical adviser to the premium CBD company Truth Naturals.