"Sarah Knapton, science editor

2 OCTOBER 2018 • 5:09PM [Daily Telegraph]

A 23-year-old man has been warned he will almost certainly develop dementia after inheriting a rare genetic mutation.

Jordan Adams is thought to be the youngest person in Britain to find out that he will suffer early onset frontotemporal dementia and Parkinson's Disease because of a faulty MAPT gene.

Although he currently shows no signs of illness, doctors have warned him he could lose the ability to walk, talk and feed himself at any time and could die in his 50s like his mother Geri who lost her life aged 52.

He has just one in 100 million chance that the mutation will not lead to dementia."

Comment

Is this statistical calculation correct? Is this a rare or even unique example of genetic determinism?

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