Julie Williams has dedicated much of her career to uncovering the genetic signposts for the most common cause of dementia: Alzheimer's disease. Chris Smith caught up with her to hear about influences she had growing up, how a revolution in genetics means we could be on the verge of key breakthroughs in fighting neurodegenerative conditions, and speaks about her time as Chief Scientific Advisor for Wales... Like this podcast? Please help us by supporting the Naked Scientists