In part 3, Dr Alex George dives into Sophie Grace Holmes’ nutrition to discover how we can eat better every day.

Sophie explains the problems you'll face when you don’t fuel yourself properly, why food needs to be fun and the intricacies of losing weight and gaining muscle. 

Plus, Sophie reflects on her family's feelings around her condition and achievements and how Cystic Fibrosis has affected her love life. 

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To improve your mental fitness, get Dr Alex’s book The Mind Manual

Download Mettle: the mental fitness app for men

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