Trust me I'm a doctor. 2/3.

This documentary is presented by medical journalist, Michael Mosley, who takes an accessible look at the science behind various health claims, with the assistance of various other doctors. In Cardiff, Mosley investigates whether certain foods have unexpected health benefits. Dr. Chris van Tulleken finds out whether 3 'super' foods, water melon, garlic and beetroot, are able to lower blood pressure. With the aid of a Welsh choir, Cardiff Arms Park Male Choir, he sends those with higher than average blood pressure with a supply of the foods. Next Gabriel Weston investigates whether energy drinks are bad for our heart; many drinks contain caffeine. A research subject, Yvonne, plays guinea pig by not drinking caffeine for several days before taking a drink whilst she's in a CT scanner so they can see the impact of the caffeinated drink. People who have experienced heart problems should take care as the heart is stimulated. Dr Saleyha Ahsan explains when to use heat or ice in an injury. Mosley then looks at whether food which has gone off is safe. Mold expert, Dr Patrick Hickie, investigates. Mosley demystifies whether short sight is caused by close computer work. Studies suggest that children not exposed to sunlight are more at risk of short sight due to lack of dolpamine. Dr Saleyha Ahsan advises what to do to treat a burn. A make-up artist dresses a man with a convincing burn. Sugar currently has a health warning; Mosley meets Simon Capewell, a spokesman for Action on Sugar. He's lobbying for hidden sugars to be banned due to the perceived causal harm in eatng sugar as poor diet rather than lack of exercise is associated with heart disease. Dr Mike Rainer argues that sugar is NOT a toxin. He says that sugar should be consumed in moderation but is not the 'new' tobacco. Dr. Chris van Tulleken investigates whether hair removal with waxing results in the hairs growing back thiner. A man, Dimitry Onogda,originally from the Ukraine, suffered a severe injury to his wind pipe and travels to Russia to get a new controversial treatment. His stem cells are extracted with the view to grow him a new trachea around an artificial scaffold. After 6 hours the surgery is complete. Post-operatively he is well and able to speak.