Kidneys, Urine and Hydration | Dr Alice Roberts: Don’t Die Young
Alice explains what the kidneys do in relation to urine and how drinking certain things can affect our hydration.
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Psychologist Kimberley Wilson and Dr Xand van Tulleken take a journey through the body's immune system and profile a remarkable white blood cell.
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Bowel cancer and 'transit time' | Dr Alice Roberts: Don't Die Young
Alice does a test with Les eating sweetcorn to see how long it takes for them to digest the food until excretion.