Larry suffers from a rare vocal cord paralysis
He experienced a cold and scratchy voice right before Larry and Sergey established Google; he didn't think much of it but later stated he never fully recovered. After consulting a doctor, he was identified as having left vocal cord paralysis, a neurological disorder that impairs the vocal cord's ability to move normally. He experienced a similar problem in 2012, but there was no clear cause. This inspired Larry to fund a study of people who have experienced a similar issue in conjunction with the Voice Health Institute.
Here's Page's short of post: "About 14 years ago, I got a bad cold, and my voice became hoarse. At the time I didn’t think much about it. But my voice never fully recovered. So I went to a doctor and was diagnosed with left vocal cord paralysis. This is a nerve problem that causes your left vocal cord to not move properly. Despite extensive examination, the doctors never identified a cause — though there was speculation of virus-based damage from my cold. It is quite common in cases like these that a definitive cause is not found."