30 years old is an extraordinary period in life, which is not only the peak of human physiological function, but also the transitional stage of aging. In addition, people in this period have to bear enormous pressure of work and life, as well as frequent social intercourse, which leads to mental stress and long-term poor sleep, and makes cardiovascular diseases, hypertension, arteriosclerosis, hyperlipidemia, diabetes and other "rich diseases" come quietly. Even if it didn't happen at that time, it would lay a hidden danger for the future. Unfortunately, many of our 30-year-old middle-aged friends don't care about their health. They think there is nothing wrong with their health, so they never go to the hospital for examination. Even if there is an opportunity to have a regular health check-up, it is often overlooked. As a result, acute diseases cannot be effectively controlled and chronic diseases cannot be effectively prevented.