Google co-founder Sergey Brin has revealed he could develop Parkinson's disease.
Brin has started a blog and writes he has taken genetic tests for the condition after his mother developed Parkinson's.
The tests showed Brin has a mutated gene named G2019S, which makes it more likely he will suffer from Parkinson's in later life.
"Early studies tend to have small samples with various selection biases. Nonetheless it is clear that I have a markedly higher chance of developing Parkinson's in my lifetime than the average person," Brin writes.
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He says the chance of him suffering the condition could be between 20% and 80% greater than the average person.
Brin said he would be taking regular exercise to decrease the chance of developing the condition. He added that he would be funding research into the disease.
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