ow long can you live? You can tell by looking at your face that people with long life have these four characteristics on their faces.

In today's society, people pay more and more attention to health, especially how to live longer. What external characteristics can predict a person's life span?

Have scientists found the secret of longevity related to facial features? In order to make the spread of medical knowledge more vivid and easy for everyone to master, next we will use a fictional story to explain.
On an ordinary day, Lao Guo and his wife discussed this topic in a health check-up. Lao Guo is a retired bank employee. He has been diligent and honest all his life. Although the pace of life has slowed down after retirement, his curiosity about life is still strong.

On that day, before the sun was fully up, Lao Guo and his wife came to a big hospital in the city to prepare for the annual comprehensive physical examination.

While waiting, Lao Guo's wife suddenly talked about a topic she saw on the Internet recently: "Do you know, it was recently said that you can guess how long a person will live by looking at his face?" Lao Guo was both curious and unbelievable.

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Lao Guo decided to ask the doctor to see what the medical community thought of this statement. Dr. Li smiled, took off his glasses and said seriously, "Actually, there are some scientific studies on the relationship between facial features and life span."

Dr. Li went on to explain that these characteristics include the elasticity and luster of the skin, the symmetry of the face, the uniformity of skin color and the vitality of the eyes.

"For example, maintaining good elasticity and luster of the skin often indicates that a person has good living habits, such as a balanced diet, moderate exercise and enough sleep."

He asked Dr. Li, "So, can you analyze my health according to my facial features?" Doctor Li smiled, picked up a flashlight and carefully observed Lao Guo's face.

"Lao Guo, your skin is well maintained, which shows that your living habits are quite good. However, from a medical point of view, it is not scientific enough to judge life span only by looking at facial features. We need more health data for comprehensive evaluation. "

In the next examination, Dr. Li conducted a series of tests on Lao Guo's blood pressure, blood sugar and electrocardiogram. After each test, he explained the significance of the test results in detail and put forward some suggestions to keep healthy.

Lao Guo was very satisfied with the physical examination. He not only got a more comprehensive understanding of his health, but also got a new understanding of the relationship between facial features and life span.

This dialogue not only increased Lao Guo's awareness of his health, but also inspired his trust in scientific medical care. On the way home, Lao Guo felt relaxed and happy as if he had mastered the secret of prolonging his life.

"Lao Guo, we just discussed how the facial features may reflect a person's health and possible life span."

"But you know what? It is interesting that people's facial features not only reflect their health status, but also may be related to people's intestinal health. " Dr. Li started a new topic in this way.

Lao Guo looked a little surprised, but was soon attracted by this novel idea. "Intestinal health? What does this have to do with the face? " He asked curiously.

"You're right, the current research does find that intestinal health has a big impact on our skin health."

"When the microbial balance in the intestine is destroyed, it may affect the skin through inflammatory reaction, which is manifested as dryness, aging and even allergic reaction of the skin." Dr. Li explained.

"So, how can we influence our facial features by improving intestinal health?" He asked.