After being diagnosed with the debilitating disease in 2015, the "America's Got Talent" host and his wife discuss her 11-year health journey and the new treatment that has given them hope
NEED TO KNOW
Rebecca Crews was diagnosed with Parkinson's in 2015 after experiencing four years of mysterious symptoms.
Last month, she underwent a cutting-edge new procedure that uses sound waves directed into the brain to eradicate some of her debi... [6110 chars]