Xand van Tulleken

Jonkheer Alexander "Dr. Xand" van Tulleken is a British doctor and TV presenter. He is best known for presenting the CBBC children's series Operation Ouch! With his identical twin brother Chris, and the Channel 4 show How to Lose Weight Well. Van Tulleken has presented many documentaries, including an episode of Horizon discussing male suicide and a BBC programme on the European migrant crisis.