Article continues below advertisementJay Leno reflected on the emotional morning routine his wife, Mavis Leno, has fallen into while facing her ongoing fight with advanced dementia. "I mean, probably the toughest part was, every day she'd wake up and realize someone had called today to tell her her mother had passed away," Jay, 75, explained during an appearance on the Today show on Thursday, November 20.Article continues below advertisementJay Leno Reveals 'Toughest Part' of Wife's Dementia BattleSource: MEGAJay Leno and Mavis Leno have been married for 45 years.