The “three highs” mainly refer to hypertension, hyperlipidemia and hyperglycemia. These three diseases usually have no obvious symptoms (i.e., called asymptomatic diseases), so they are called “silent killers”. However, their development can lead to serious consequences, such as myocardial infarction, cerebral infarction, cerebral hemorrhage, and so on. It is also an important risk factor of the “death quartet”. Wang Shih, Department of Geriatrics, Peking University Shenzhen Hospital “Death quartet”: refers to the four risk factors of hypertension, hyperlipidemia, hyperglycemia and obesity. The more risk factors there are, the more likely they are to lead to cardiovascular disease.