For Jay Leno, caring for his wife, Mavis Leno, amid her dementia battle is a happy challenge. “When I got married, you sort of take a vow [like,] ‘Will I live up to this? Or will I be like a ...

Jay Leno is glad he stayed committed to wife Mavis. The former "Tonight Show" host discussed staying true to his vows and being a dedicated caretaker to Mavis Leno, 78, amid her "advanced ...