"Anger" has been the emotional taboo for experts on life cultivation throughout the history. It impairs not only the liver, but also the heart, stomach and brain, etc., which leads to cause various diseases. Accordingly, anger, the bad emotion, should be possibly controlled in life cultivation and rehabilitation.

Restraining one's anger means that one should rationally overcome emotional impulses. When anything irritating comes up, one should first think of its bad consequence so as to rationally restrain and control one's bad and violent emotions. For instance, ancient and modern wise people often hang up aphorisms such as "restraining anger" and "ceasing to be angry" over their desks to remind them of abstinence from anger. More information, please read Impaire Internal Organs.