It's thought that around one in a hundred children in the UK is somewhere on the autistic spectrum - a complex range of disorders that can be challenging to understand and live with. But recent advances in genetics are bringing hope for new therapies that might help. Plus, we look at the genes underlying Specific Language Impairment, find out why cancer has the X factor, and meet a hopeless-sounding gene of the month. Like this podcast? Please help us by supporting the Naked Scientists