Cholesterol of 5.44mmol/L in a 65 year old is not considered high. The normal range of cholesterol in adults is 3.5-6.2mmol/L. With age, the cholesterol content accumulated in the human body increases. 65 years old people’s resistance is weakened, the metabolic function of the body decreases, and the ability to metabolize cholesterol also decreases. If the daily life of unhealthy diet, long-term intake of food containing high cholesterol, drinking too much alcohol, will lead to an increase in the body’s cholesterol; or a combination of some of the common diseases of the elderly, such as coronary heart disease, diabetes, and taking certain medications, etc. will cause cholesterol increase. Normally live more low-fat and low-salt diet, eat more vegetables and less meat, insist on daily exercise, if the combination of other diseases and symptoms, it is recommended to consult a doctor in time to find out the cause of the disease, in order to avoid adverse effects.