Lipids is the general term for the lipids contained in human plasma, which include cholesterol, triglycerides, cholesterol lipids, beta-lipoproteins, phospholipids, and unlipidated lipic acids. When serum cholesterol exceeds the normal value of 230 mg/100 ml, triglyceride exceeds 140 mg/100 ml, and beta-lipoprotein exceeds 390 mg/100 ml or more, it is called hyperlipidemia. Prevention of hyperlipidemia can be done in the following ways: 1. Reasonable diet Reduce the level of fat and cholesterol intake, control body weight, prevent or correct obesity, diuretic sodium discharge, regulate blood volume, and protect the function of heart, brain and kidney vascular system. Adopt low fat and low cholesterol, low sodium, high vitamin, moderate protein and energy diet. 2, choose the right exercise program: according to their own situation, choose a reasonable exercise program. 3, master the intensity of exercise: exercise at a heart rate of 60-70% of my maximum heart rate, which is equivalent to about 50-60% of the maximum oxygen uptake. General 40-year-old heart rate control at 140 times / min; 50-year-old 130 times / min; 60 years old and above 120 times / min is appropriate. 4, the appropriate frequency of exercise: middle-aged and elderly people, especially the elderly because the body metabolism level is reduced, the recovery time after fatigue is extended, so the frequency of exercise can be increased or reduced, generally 3-4 times a week is appropriate. 5, the appropriate exercise time: each exercise time control in 30-40 minutes, the best afternoon exercise, and should adhere to the long-term exercise exercise. The causes of hyperlipidemia (1) primary hyperlipidemia, is the original no other disease but the occurrence of hyperlipidemia, generally because of genetic factors. (2) Secondary hyperlipidemia is hyperlipidemia caused by various reasons, such as diabetes, hypothyroidism, nephrotic syndrome, kidney transplantation, biliary tract obstruction, etc. (3) Hyperlipidemia caused by bad eating habits, such as overeating, alcoholism, partial eating, irregular diet, etc. (4) Hyperlipidemia caused by long-term use of certain drugs, such as birth control pills, hormonal drugs, etc. (5) Hyperlipidemia caused by mental factors, which is due to long-term mental tension, resulting in endocrine metabolic disorders, and the formation of hyperlipidemia over time.