The theory that in the human body, everything illness has a cause, and the treatment is to do the opposite of the symptoms. For example, if someone had an excess of phlegm (associated with winter and water)Galen would recommend that you blow your nose etc to rid the body of phlegm, and then try to "warm you up" by feeding you hot peppers etc/
Why did Galen make so many anatomical mistakes?
He was only allowed to dissect animals, as human dissection was forbidden in Ancient Rome
Why did Galen cut the throat of a pig?
He was performing an experiment, where he made small cuts on a pig to make it squeal, and then he cut the pigs throat. This experiment proved that the heart did not control all of the parts of the body, and instead was the first proof of a nervous system.
