James Lee often has to pick up his 100-pound son, Justin. Photographer Andrew Nixon shot this photo in an effort to show how being caregivers affects the aging parents. Andrew Nixon/Capital Public Radio hide caption

itoggle caption Andrew Nixon/Capital Public Radio

Jason DaSilva was on a family vacation in 2006 when he fell and couldn't get up. His multiple sclerosis symptoms have progressed to the point that he can't walk. Factory Release hide caption

itoggle caption Factory Release