Joan Rivers

I won't sell any Facebook shares as long as I'm on the board. When I leave, all my Facebook shares will be donated to two or three D.C. education-related charities I've supported over the years. Thus, a small portion of Facebook's success will be shared with low income students in Washington.

The importance of heart health became very real for me when my father died of heart disease seven years ago. Having experienced the loss first hand, I am inspired to do everything I can to break the cycle and prevent families from losing loved ones to this preventable disease.