People get angry more often as their frustration tolerance lowers. This low tolerance level can be caused by a number of reasons, stress and/or anxiety, physical and/or emotional pain, drugs and alcohol, or simply having a bad day. All of these can lead to a lower frustration tolerance, and when people get angry it can result in unnecessary outbreaks. When anger is out of control it is similar to a person under the influence of drugs. The person's ability to rationalize is compromised and they act purely from emotion."
Note: People get angry when they feel that they are being threatened. It could be a perceived threat to themselves, their ego, or someone they love or sympathize with. It's when anger is uncontrolled that it becomes a negative force with negative consequences
published by Francisco Herrera