Chris van Tulleken

Christoffer van Hoogenhouck-Tulleken (born 18 August 1978), known as Dr. Chris, is a British physician, television presenter, and identical twin brother of Alexander "Xand" van Hoogenhouck-Tulleken. Van Tulleken became well known for his two-part television special for BBC One entitled ''The Doctor Who Gave Up Drugs'' (2018). He is the author of ''Ultra-Processed People'' (2023). The Van Tulleken brothers are best known for presenting the children's series ''Operation Ouch!'' (2013). Provided by Wikipedia