Trust Me, I'm a Doctor is back with a special programme on mental health.

Michael Mosley runs an experiment to find the best way to beat stress - mindfulness, yoga or gardening. Psychiatrist Dr Alain Gregoire reveals how sleep affects mental health. GP Zoe Williams discovers why laughing can be as good as exercise for improving mood. Surgeon Gabriel Weston investigates a new cure for some patients with serious mental illness. And geneticist Giles Yeo asks if you can eat your way to happiness. Show less