This is coming on BBC2 in about 15 minutes, just as a heads-up for any Pratchett fans in the UK.
Second part is next Wednesday night.
Determined to prevent it if he possibly can, Terry Pratchett takes a personal journey through the science and the reality of what it’s like to be diagnosed with Alzheimer’s.
This two part documentary follows Terry’s race to find a cure as he endeavours to find ways of slowing, mitigating or even reversing its course.

