Sun Simiao was a really great doctor a long, long time ago in China. He lived over a thousand years ago! He wrote many books that talked about how to take care of your body and how to make medicines from plants.
Sun Simiao was very wise and knew a lot about how the body works. He believed in prevention, which means trying to stop problems before they even start. He thought it was important to eat healthy food and exercise regularly to keep your body strong and healthy.
When people did get sick, Sun Simiao knew just what to do. He would look at their tongue and feel their pulse to figure out what was wrong. Then he would use natural ingredients like herbs and plants to make medicines to help them feel better. He believed it was important to treat not just the symptoms of an illness, but the root cause too.
Sun Simiao was a very kind and caring doctor, and he always tried to make his patients feel comfortable and safe. He believed in treating everyone fairly, no matter who they were or how much money they had.
Even though he lived so long ago, people still study Sun Simiao's books today. He helped make medicine better and taught us all how important it is to take care of our bodies.