Can a glass of red wine a day really make you live longer? Dr Rochford enjoys a tipple to find out. Will an afternoon snooze improve your work performance… Leila naps on the job in the name of science of course. Do we really need to drink 8 glasses of water a day? Slats downs the H2o to put the theory to the test. Can you revive a dormant brain… We have some simple exercises to give your mind a new lease of life. And… Cockroaches.. filthy critters, or are they?… Dr Rochford puts his personal hygiene on the line to find out.