Cancer surgeon Dr Ramakant Deshpande answers the most crucial questions on the disease. And offers very important advice on ensuring yourself a healthy, everyday life.

"I just could not believe it. My knees were shaking when I had to get up and walk towards the stage. I am lucky that I did not pass out or something," Sana said, recalling the May 16 award ceremony, in which Intel selected three top young scientists at the end of the world's largest pre-college science fair, held between May 11 and May 16. Each of them got $50,000 in college scholarships from the Foundation.

Businesses have donated nearly $14 billion to cure society's many ills.