Frequent anger can indeed promote the occurrence and development of breast cancer and is correlated with the progression of the tumor. Frequent anger, which exhibits a variety of chronic emotional stress, including depression, anxiety, anger, and also fear, are all risk factors for cancer, especially including risk factors for cancers like breast cancer, and can even be directly said to be one of the causative factors for breast disease. Emotional stress can affect the activity of the body’s immune system and lead to dysregulation of the immune microenvironment, and most critically, studies have confirmed that chronic emotional stress caused by frequent anger can induce upregulation of adrenaline levels, leading to mutation of T cells, which in turn promotes the ability of breast cancer cells to spread metastasis. Self-emotional management is very important, and if you have chronic emotional stress, you may need to visit the relevant specialist in time to adjust your emotional stress and reduce the possibility of developing breast cancer.