Aged 19, Dan Simmonds turned down a university place and instead became an oil trader in the City of London. It was an exciting and ruthless environment driven by big risks and even greater rewards. But it ultimately challenged Dan’s values and filled him with a desire to seek something new. Over a decade later, whilst jogging around Regent’s Park, Dan made a discovery that would change his life and career.

Dan tells his story to Dr Sian Williams.