Mary VanDam pours coffee for patron Jim Brumm at Mr. B's Pancake House in Laketon Township, Mich. Cory Morse/Muskegon Chronicle via AP hide caption

itoggle caption Cory Morse/Muskegon Chronicle via AP

Dan Gottlieb hosts a mental-health call-in radio show on WHYY. In 1979, was in a near-fatal car accident that left him paralyzed from the chest down. hide caption

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Paul Carpenter, aka Popol (right), and his clown friend Kakehole run pre-show therapy sessions. Courtesy of John Lawson's Circus hide caption

itoggle caption Courtesy of John Lawson's Circus

Marines wait outside a building to take psychological tests in September 2009. The military assesses troops in search of clues that might help predict mental health issues. Jae C. Hon/AP hide caption

itoggle caption Jae C. Hon/AP

Tom DeBaggio, a herb and gardening expert, was diagnosed with early onset Alzheimer's disease in 1999. 1999 File photo/Washington Post via Getty Images hide caption

itoggle caption 1999 File photo/Washington Post via Getty Images

Six years ago, Kevin Sargeant's mother would have described him as "a broken child." Now, Kevin is doing an IT internship, and he plans to attend college this fall. Jon Hamilton/NPR hide caption

itoggle caption Jon Hamilton/NPR