< + > Exclusive: Google Cofounder Sergey Brin Has Quietly Donated More Than $1 Billion Toward This One Specific Disease

Brin, who more than a decade ago revealed that he has a genetic mutation that gives him a higher risk of getting Parkinson’s Disease, has quietly given hundreds of millions of dollars a year to research what exactly causes the debilitating neurological disease and, in time, how to cure it.