Man Breaks Chin-Up Record With 10,001 Reps for Parkinson's

David Brush completed 10,001 chin-ups in under 24 hours, shattering the world record while raising over $15,000 for Parkinson's research in honor of his grandfather.

Despite crippling pain and losing grip strength halfway through, he pushed past the finish line with one goal in mind: fighting the disease that took his grandfather.