 Consequently, he went on to study natural sciences at Trinity College, Cambridge in 1935, before changing to study medicine and physiology instead.He graduated in 1935 with a first class degree in physiology and went on to qualify as a doctor in 1942 having studied at the London Hospital Medical College, during which much time was spent treating casualties of The Blitz.After qualifying as a doctor, he was attached to the Medical Research Council's (MRC) military personnel research programme, working under BS Platt, where he spent a year studying heat stroke and heat exhaustion in Basra.