Alzheimer's

Two years ago, 31-year-old Dan was diagnosed with a rare form of genetic Alzheimer’s
Dan has a rare form of genetic Alzheimer’s and there’s a risk he's passed on the faulty gene to his children, so Dan's taking part in a experiment that he hopes will help find a cure.
brain neurons

Michelle Roberts

Health editor, BBC News online

Experts say the dementia discovery - the most important for years - could help find new, effective treatments.

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