At the age of 78, Joan published her first book, and at 79, she is hiking the 58 national parks with her husband – they’ve just completed #35. Did we mention she’s on track to reach her goal of walking 1,000 miles for the year? And at the age of 80, Allen, a self-proclaimed “Jollytologist,” is writing his 27th book. Allen shows us that humor can be used to gain perspective and to cope – even in the most tragic of times. These are their stories.