Dr Chris and Dr Xand find out why blood rushes to your head when you are upside down but doesn't rush to your feet when you're standing up! Show more
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Dr Chris and Dr Xand find out why blood rushes to your head when you are upside down but doesn't rush to your feet when you're standing up! Show more
CBBC is the BBC's multiplatform offering for 6-12 year olds bringing the very best drama, entertainment and factual programmes to its young viewers.
