Dr. Chris and Dr. Xand answer your questions CBBC

Dr. Chris and Dr. Xand from CBBCs Operation Ouch answer some medical questions sent in by the viewers! Watch more great Operation Ouch! clips on the .\r
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Twin doctors Chris and Xand Van Tulleken experiment with their core body temperature. Watch more great Operation Ouch! clips on the CBBC website .\r
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Is it safe to drink urine? Dr Chris Van Tulleken and Dr Xand Van Tulleken from CBBCs Operation Ouch find out, so you dont have to! Yuck! Dont try this at home .\r
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Find out what really happens to you when you get bitten by Zombie. Dr Chris and Dr Xand Van Tulleken from Operation Ouch explain the science behind .