Frequent anger in women is associated with a higher risk of breast cancer. The causes of breast cancer are not yet fully elucidated, but recent research suggests that its development may be related to various factors. These include familial factors, reproductive factors, levels of sex hormones, and relevant genes. Frequent anger in patients can cause instability in the body's hormones, leading to exacerbated breast hyperplasia. Increased breast hyperplasia can then lead to the formation of small nodules in the breast. Due to the stimulation of estrogen in the body, these breast nodules are more likely to become cancerous. Therefore, it is important to maintain a cheerful mood, minimize anger, and eat more foods containing vitamins, as Vitamin A plays a role in protecting breast cells.