Answer:
Atrophy
Explanation:
Atrophy is the breakdown of cells, tissues, muscles or even organs. The prefix 'a' is negative in latin and -trophy meaning nutrition or growth. Put together it is negative growth or just simply the the breakdown of something.
Galen was a renew physician during the Middle Ages and Hippocrates believe that there are four humor in the body that which brings balance for a healthy life
Blood
Yellow bile
Black bile
Phlegm