She's the co-founder and editor-in-chief of The Huffington Post and a syndicated columnist. Arianna Huffington talks about the wake-up call that led her to write her 15th book, "The Sleep Revolution."

No one can dispute Arianna Huffington’s success in the business world. But after an accidental fall from exhaustion and lack of sleep, Huffington began asking herself – Is this really what success feels like? She shares her secrets on success. Read an excerpt of Huffington's book.