When a person is angry, stress hormones like adrenaline, noradrenaline, and cortisol are released. As a result, the heart rate, blood pressure, body temperature, and breathing rate all rise. Anger that is unmanaged regularly can cause a constant flood of stress hormones, which can be harmful to one's health. Regular and extreme anger, for example, can contribute to: Backaches\\Headaches. High blood pressure. Insomnia. Irritable bowel syndrome (IBS) or other gastrointestinal issues. Disorders of the skin. A stroke. Heart Attack. A lower threshold for pain. A weakened immune system, leading to an increase in infections, colds, and flu. The following are some of the emotional and mental consequences of frequent, uncontrolled anger: Depression and irritability. Disordered eating. Abuse of alcohol or other drugs. Suicidal ideation and self-harm. Low self-confidence.