5. The Big Skin Mystery

The Doctors test a new theory to see if they can find out why skin goes wrinkly in the bath, Dr Chris meets a patient taking part in ground-breaking heart research, and test the power of your eyes in today's mind-bending trick. Meanwhile, there are more medical mysteries in 'Ouch & About', and over in Accident & Emergency one patient has a very sore head and another has dislocated her jaw.