To be honest, if you really want to learn, pick up an easy medical book like Dummies Anatomy and Physiology. If youre really interested in medicine try Kumar and Clarks Clinical Medicine. They come for free online, look for it ;)This app is really just for the fun, the quiz wil get you nowhere its laughable. Im a medical student trust me, youre better off with an easy book. No knowledge come easy, that would be too boring.