I've worked with a lot of people who are more famous than myself who are terribly insecure.
Although they might not admit it, I think girls are very aware of the impact that they're having. But they never feel it themselves, and it's impossible to explain. It's like trying to tell a blind person what yellow is.
Alzheimer's, Parkinson's, brain and spinal cord disorders, diabetes, cancer, at least 58 diseases could potentially be cured through stem cell research, diseases that touch every family in America and in the world.