A new study in Nature has looked at genetic underpinnings that could lead to earlier presentations of Type 2 diabetes in South Asian populations. Also on the program, we look at an exciting new development in asthma treatment, and how we can detect Alzheimer's soon. Plus, slap fighting – the sport is growing in popularity, but could it have negative health consequences for participants.Presenter: Claudia Hammond Producer: Margaret Sessa-Hawkins and Jack Lee