Alim-Louis Benabid is a French doctor who has done important work in the field of medicine. He invented a surgery, called a deep brain stimulation, which helps people with Parkinson's disease. Deep brain stimulation is a way of treating the brain so it can move more easily, by using electrical signals sent directly to certain parts of the brain. This treatment has been used in many people around the world to help them better manage their symptoms. Alim-Louis Benabid was the first to use this technique and he inspired a lot of other doctors to look into this kind of treatment for Parkinson's.