You know Dan Marino as the football great, but there's more to the Hall of Fame quarterback than meets the eye. At one point, a little too much.

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After putting on some postretirement pounds and losing several friends from obesity-related complications, Marino now makes physical activity and good nutrition a daily routine. Staying healthy enables him to focus on his passion, which is helping children with neuro-development disorders. The Dan Marino Foundation raises money for research and therapy facilities, including a special wing at the Miami Children's Hospital. My Generation's Diane Roberts talks to the AARP men's life ambassador about his philosophy: sharing, caring and staying fit.

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