Repressing anger trashes our immune system. This is not just emotional language. It is physiology. When anger is repeatedly suppressed, the nervous system stays stuck in a low-grade fight or flight response. Stress hormones like cortisol and adrenaline remain elevated, which over time suppress immune function, increase inflammation, disrupt sleep, and exhaust the body’s ability to repair itself. Unexpressed anger does not disappear. It gets stored in muscle tension, shallow breathing, digestive