Treating low sex drive in women. Expert panels in the USA have voted in favour of a drug that has been dubbed 'Pink Viagra', but there are serious reservations. Outdoor swimming is the new trend for 2015, but should you take the plunge or go in slowly? Strokes in the under 55's have recently been reported to be on the increase: Dr Margaret McCartney takes a closer look at the evidence. And unpicking tricky terms to understand your health - causation versus association.

Presented by Dr Mark Porter.