Catecholamine hypersecretion, also known as pheochromocytoma, originates in the adrenal medulla, sympathetic ganglion, parasympathetic ganglion (paraganglia) or other sites of chromophobic tissue. Due to the paroxysmal or persistent secretion of norepinephrine and epinephrine by the tumor cells, the clinical picture is one of paroxysmal or persistent hypertension, headache, sweating, palpitations and metabolic disorders. If treated early, it can be cured. Preventive and prognostic measures for catecholamine overproduction: 1. Avoiding harmful substances (cancer-promoting factors) is to help us avoid or minimize exposure to harmful substances. 2.Improve the immunity of the body against tumor It can help to improve and strengthen the immune system of the body to fight against tumor. (1) Avoiding the invasion of harmful substances: some factors related to the occurrence of tumor are prevented before the onset of tumor. About 80% of malignant tumors can be prevented by simple lifestyle changes. The focus of our current tumor prevention and treatment should first focus on and improve those factors that are closely related to our lives, such as quitting smoking, eating right, exercising regularly and reducing weight. (2) Promote the body’s immunity: The most important things to improve the function of the immune system are: diet, exercise and a healthy lifestyle. Maintaining a good emotional state and appropriate physical exercise can keep the body’s immune system in the best condition, which is equally beneficial to the prevention of tumors and other diseases.