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While Kevin throws a party for critics and fans of all things aloe vera, he asks if the humble plant can really live up to the hype generated by its celebrity following and headline-grabbing health claims.

Angela is in the operating theatre and on the wards of a hospital that gets through 14,000 aspirin tablets every month to find out how new uses for this 120-year-old drug are still being uncovered - and she asks if its side effects are really as dangerous as claimed.

Danny Crates has flossed his teeth every day for as long as he can remember, but Danny's bathroom routine is hanging by the thread after headlines claiming flossing is pointless - and there's no proof it works. So with the help of a choir, some swabs and a lot of floss, Danny is investigating once and for all whether he should toss the floss.