Terry Pratchett: Living with Alzheimer's

Best-selling author Terry Pratchett has early onset Alzheimer's, a disease he is prepared to tackle head-on. In the first of a two-part series, Terry confronts living with his uncertain future and facing a world ultimately without words. Following Terry's progress through his first year with Alzheimer's, this programme explores some cutting-edge science and weird treatments to reveal what it is like to be diagnosed with this terrifying illness.