Science commentator Dr Siouxsie Wiles

Science commentator Dr Siouxsie Wiles joins Kathryn with some interesting studies, including one where Australian researchers found a species of worm able to feed on polystyrene. US scientists have developed 'millirobots' which use magnets and origami folding to flip, spin and even swim! And women's blood pressure measurements may be inaccurate because of their height - a Canadian study compared people's blood pressure measured during an arm cuff and another inside their arteries during surgery.