Mary Beth Solinski, a 59 year old, with Down Syndrome, bakes her own birthday cake with help from her niece Sarah Graziano, 22...Aging adults with Down Syndrome. In 1983, people with Down syndrome could expect to live to age 25. Today, their life expectancy is 60 years. We interview a 59-year-old patient who has outlived her parents and is now in AARP. She has trouble walking, but has lots of interests, such as cooking, arts and crafts and reading.