Scientist and physician Michael Nehls explains how Alzheimer's can be reversed.

Michael Nehls, MD, PhD, is a physician and molecular geneticist. As a basic researcher, he has deciphered the genetic causes of various hereditary diseases at German and international research institutions. He has published two of his discoveries in collaboration with several Nobel laureates. His discovery of a key gene in the development of immunity was honored as a "Pillar of Immunology" by the prestigious American Association of Immunology. A science writer with a talent for making complex issues accessible to a wide audience, he has written several best-selling books that have been translated into many languages. As a private lecturer, he is a popular speaker at conferences and universities.