Dr Mark Porter
Dr Porter is a half-time NHS GP principal in South Gloucestershire and spends the rest of his week writing and broadcasting on medical issues.
He qualified from Westminster Hospital Medical School, London, in 1986 and spent five years in a variety of hospital specialities before entering General Practice.
Mark presents BBC Radio 4’s flagship medical series Inside Health and is medical columnist at The Times. He was appointed MBE for services to medicine in 2005.