Twenty-eight years later, as a political science professor emeritus at Stanford, Krehbiel just became the first person in the ...

After a twitching pinky finger led to a diagnosis of young-onset Parkinson’s disease, Keith Krehbiel, then 42, stopped at a bookstore on the way home to learn more about the progressive ...

For decades, Keith Krehbiel took high doses of medications with a debilitating side effect—severe nausea—following his diagnosis with early-onset Parkinson’s disease at age 42 in 1997.