"Anger illness" in Korean language and culture

"Hwa-byung is believed to be caused by a build-up of unresolved anger, which disturbs the balance of the five bodily elements. The triggering cause is external events, particularly intra-familiar stressors such as spousal infidelity and conflict with in-laws. Because of the cultural emphasis on familial harmony and peace, expressing anger is not acceptable, so the anger is suppressed, and builds on itself over time. The suppressed anger, hate and despair is known as han, or "everlasting woe".
Behavior related to hwabyeong includes sighing. In addition, sufferers might report such symptoms as a heavy feeling in the chest, perceived abdominal mass (previously thought to define the illness, but now believed to be atypical), sleeplessness, hot flushes, cold flushes and blurred vision. They may also demonstrate typical neurotic symptoms such as anxiety, depression, obsessive-compulsiveness, as well as anorexia, paranoia or fearfulness, absent-mindedness and irritability." (Wikipedia)