Hypertension is a common cardiovascular disease and a common clinical diagnosis. Older adults commonly have primary hypertension, and the causes are as follows: 1. Age factor: Nearly half of the patients over the age of 60 have hypertension, and some patients are not diagnosed and actually have hypertension. Because patients do not go to the hospital or usually no symptoms, this group is more, so to remind the elderly after a certain age to frequently measure blood pressure, as early as possible to clearly diagnose whether there is hypertension, especially patients with a family history, clinically common in 20-30 years old already have clear hypertension; 2, vascular disease: the most common is atherosclerosis, arterial stenosis, arterial occlusion resulting in blood pressure elevated; 3, abnormal dietary habits: the most common is a high salt diet; 4, reduced daily activity: such as drivers, cab drivers high blood pressure, heart disease, and even a high proportion of heart attack; 5, psychological factors: long-term in the emotional state of tension, anxiety, can lead to vascular spasm, arteriosclerosis, hypertension, heart disease. So patients should do a good job of emotional self-management, emotional regulation, especially in the current work pressure, life pressure, environmental pressure are increasingly large, psychological regulation is one of the important factors. Secondary hypertension is often caused by problems such as respiratory sleep apnea syndrome and renal artery stenosis due to kidney disease, which can be diagnosed clinically through specialized tests to clarify the diagnosis.