Support WBURAlzheimer's Starts To Steal The Joy Of Being A GrandfatherPlay03:58Download AudioRebecca HersherJune 17, 2017 ShareWriter Greg O'Brien and his daughter, Colleen, play with Adeline, Greg's 8-month-old granddaughter. Eight years ago, Greg was diagnosed with Alzheimer's disease. (Meredith Rizzo/NPR)
