BBC 2 has aired: The Jennings v Alzheimer’s.
The promotion for the documentary says:
“When a mutant gene causing Alzheimer’s is discovered in the Jennings family, it leads scientists on a journey to develop a cure and leaves family members with a terrible dilemma.
The Jennings are the first family in the world to be diagnosed with hereditary, early onset Alzheimer’s, a discovery which many think will be the key to finally unlocking a cure.
But that discovery also revealed a devastating truth for the family: the hereditary gene is being passed through each generation.”
You can watch The Jennings v Alzheimer’s here: https://www.bbc.co.uk/iplayer/episode/m001z9vf/the-jennings-v-alzheimers