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Story summary
- Over two-thirds of Parkinson's patients lack a clear genetic connection, prompting researchers to explore non-genetic causes.
- Only 10 to 15 percent of Parkinson's cases are linked to genetics.
- Sergey Brin has committed about $1.8 billion to Parkinson's research, driving a focus on genetics.
- Parkinson's disease remains the second most common neurological disorder in the United States, with about 90,000 new diagnoses each year.
