Ms. Dong is 65 years old and lives in Huatai Community, Futian District. She is a retired teacher. She told reporters that she had already taken preventive measures for the "three highs" problem. According to statistics, at present, there are about 400 million people with "three highs" in China, and in Shenzhen Traditional Chinese Medicine Hospital, the number of inpatients caused by "three highs" exceeds 3,000 every year. Once suffering from "three highs", the heart, brain and kidney organs of the human body may be damaged, and symptoms such as myocardial infarction and sudden cardiac death may occur, which is life-threatening. According to the doctor, although the patients with "three highs" are mostly middle-aged and elderly people, at present, the patients with "three highs" are younger. According to the doctor, the "three highs" have become the "number one killer" threatening the health of middle-aged and elderly people, and need to be prevented as soon as possible. For Ms. Dong's recommendation, drinking lemonade to prevent the three highs, the doctor said there is some truth. From the perspective of traditional Chinese medicine, lemon can prevent the three highs, while from the perspective of western medicine, lemon is also a good health care product.