“I was interested in what makes people tick. How the human body works, but also how people think and behave,” says Dr Michael Mosley, BBC presenter. 

After two years as a banker following graduation, Dr Mosley had the revelation that he should do something “more worthwhile” with his life and headed to medical school to become a psychiatrist. 

But while he recalls fond memories of training at the Royal Free Hospital in London — where he also met his wife Clare, an NHS GP — he became disillusioned with his chosen specialty. 

“I wasn’t convinced that I was doing much good.