As the old saying goes, people who are popular are healthy and tenacious. Because if the body's yang is sufficient, it will ensure that the body will not be attacked by certain diseases or infections, so that the body will always maintain a healthy level. For middle-aged and elderly people with strong voices, this state is very valuable, representing a healthier and stronger body. On the other hand, a weak voice sounds weak, which obviously indicates a weak body. Therefore, healthy middle-aged and elderly people should have a strong voice and contain no impurities.
Usually, careful observation reveals that children's eyes are the clearest, while adults, especially middle-aged and elderly people's eyes are cloudy. Because with the gradual growth of age, things in the eyes will be more and more precipitated, the pupils will no longer be as clear as when they were young, and there will be a lot of red blood in the eyes, which will lead to more and more dim eyes. So we often say that the elderly are nearsighted. In fact, words are derogatory terms, but for the body, these are normal decline phenomena. Of course, if some middle-aged and elderly people still keep their eyes clear and bright, it proves that they are very healthy and strong.
If many middle-aged and elderly people are in poor health, their teeth will loosen and fall off, so strong teeth also represent an obvious feature of their health. In particular, oral health also indicates kidney health and represents a sign of health and longevity. Therefore, middle-aged and elderly people with good oral ability generally represent that their bodies are still very tough.
Some elderly people will suffer from various diseases because of obesity. The main reason is that when people get older, the cell activity in the body will gradually decrease, and the intake of some nutrients will gradually decrease. This will cause some nutrients to accumulate excessively in the body but cannot be absorbed. At this time, it will lead to obesity in the body, and the organs of middle-aged and elderly people will gradually decline. Once obese, it will lead to various diseases. Therefore, if the weight of middle-aged and elderly people is not too fat, it also shows that the body is tough.