Michael Mosley and the doctors investigate what giving up alcohol for a month really does to your health, whether massage is worth the money, and whether medical cannabis is safe.

Michael Mosley finds out what giving up alcohol for a month really does to your health. Gabriel Weston investigates what we really know about the risks and benefits of medical cannabis. Dr Zoe Williams reveals how to get the most out of your GP appointment. Dr Alain Gregoire discovers a surprising way massage benefits your health. And Dr Giles Yeo finds out how to avoid exam stress.