Trust Me, I'm a Doctor

Episode 4 (9x4)

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Michael Mosley runs an experiment to test whether an extra hour a week in nature improves your physical and mental health. Alain Gregoire investigates a mysterious illness that can transform a child’s personality overnight. Zoe Williams discovers the hidden body fat that can make us thin. Giles Yeo investigates whether trendy plant-based milks are any healthier than dairy. And Guddi Singh witnesses pioneering cancer surgery – using an intelligent knife that can detect tumours.