This is 31-year-old Elizabeth Holmes. She dropped out of Stanford when she was 19. Twelve years later, she's a billionaire. She did some regular stuff in between like founding a company and revolutionising medicine. Holmes founded her company, Theranos, with the money she had saved for college. Now, Theranos is worth $9 billion. As owner of half the company, Holmes' worth is estimated at $4.5 billion. This makes her the youngest self-made woman billionaire in the world.

Holmes, on the other hand, says she is only trying to protect Theranos from competitors.

Elizabeth Holmes' story is one of endurance, perseverance, and success. But it's far from over. She promises some radical changes in the medical world. We can only wait and watch what else this young CEO pulls out from under her hat.