Yes, it is. When you're angry, your blood pressure goes up and stays high as long as the anger persists. Anger's effect on cardiovascular health means an increased risk of hypertension and stroke in addition to heart disease, gastric ulcers, or bowel illness. Furthermore, depending on how much time you spend being angry each day across a lifetime, this could lead to more fatalities. This is prevalent among those who are already at risk for death from these illnesses like diabetes and cancer.