When a person gets angry, his senses stop working and all his energy gathers up to his brain. Such a person gets exited and loses his energy as well as any will to work at once. It anger people also get cardiac arrests easily because the blood pressure rises at once and it starts touching the extreme levels. Once anger strikes a person, he speaks so much ill about others that relationships end and value of the person reduces or is gone forever.
These and many other problems arise only because of anger. This is why Islam says to control anger in fact controlling anger has been termed as a quality of the believers.
ALLAH swt said in Quran 3:134
“…who repress anger, and who pardon men; verily, Allaah loves Al-Muhsinoon (the gooddoers).”
And
Al-Quran 42:37
“And those who avoid the greater sins, and AlFawaahish (illegal sexual intercourse), and when they are angry, they forgive.”
What should one do at the time of anger? Since it is unavoidable emotion and anger cannot be erased and should not be erased completely but when one gets angry he should do what ALLH swt has told us to do, i.e. if we get angry at a person who can neb forgiven we should do that.
To control anger looks very difficult, but once that moment is over, things get back to normal at once. Prophet Muhammad s.a.w.w saud that the stronger is the man who controls his anger.
Al-Bukhaari narrated in al-Saheeh (6114) that the Messenger of Allah (peace and blessings of Allah be upon him) said: “The strong man is not the one who can wrestle (fight); the strong man is the one who controls himself at the time of anger.”
Remember, too, that the Prophet (peace and blessings of Allaah be upon him) was not a person who insulted or cursed others. It was reported in Saheeh al-Bukhaari (6031) that Anas ibn Maalik (may Allaah be pleased with him) said: The Prophet (peace and blessings of Allaah be upon him) was not a person who insulted people or used obscene language, and he did not curse people. If he wanted to rebuke anyone, he would say, “What is wrong with him? – may his forehead be rubbed with dust.”
So, to control anger is not only good for us but it earns us reward for listening to what we are told.