Show more Doctors Chris and Xand van Tulleken are identical twins, medical doctors and science broadcasters. They grew up in London, surrounded by old paintings and documents commemorating a host ...

Drs Chris and Xand van Tulleken explore the science of exercise ... to keep on top of things after years of unhealthy living. His twin brother Chris, on the other hand, is really feeling the ...

Interview with Dr Chris and Dr Xand ... C: Even other doctors might enjoy it! After six years at medical school and 10 years of practice, both Xand and I still learnt loads making the show!

Dr Chris Van Tulleken joined his twin brother Dr Xand on Morning Live on Monday ... After the month was up, the doctor was a staggering seven kilos, or around 15 lbs, heavier.