Jean Martin Charcot was a special doctor who lived a long time ago. He was from France and he helped many people who were sick in their brains. Some people who were sick like this had a lot of trouble moving their bodies, and others had trouble talking or thinking. Jean Martin Charcot was very good at helping these people feel better.
He used something called "hypnosis" to help his patients. This is when he would help them feel very relaxed and sleepy, and then he would talk to them in a gentle voice. This made his patients feel better and helped their brains work better too! He also learned a lot about how the brain works by studying people who had passed away. He would look at their brains to learn more about what was happening inside.
Jean Martin Charcot was so good at his job that many other doctors wanted to learn from him. He taught them all about how to help people who were sick, and his ideas helped many people feel better. Even today, doctors still use some of his ideas to help their patients.