First: Hunger. In your life, if you don't feel hungry when you arrive at the meal, it is likely that there is something wrong with your immune system or digestive system. In fact, during the development period, when the meal arrives, there will be a strong sense of hunger. With the increase of age, hunger will not be so strong, and eating at dinner time may not be so desirable. So ordinary hunger can test whether the spleen and stomach are healthy.
Second: full of energy. People who are healthy will always feel that they are full of vitality in life and can solve problems calmly in the face of life and work. Even if you feel tired, after a certain rest, you can still use blood to restore your spirit immediately.
Third: strong immunity. Some people are prone to catch a cold when the weather changes suddenly, which means that this person's immunity may not be very good and will be poor. In healthy people, there will be more antibodies in the blood, so in the same environment, people with stronger immunity will have stronger disease resistance.
However, there are also some people who are very healthy and energetic when they are young, but their health will get worse and worse because of long-term bad living habits and no exercise. People who are physically weak can also change their weak constitution through conditioning.
In fact, the quality of sleep can sometimes be used to measure whether a person is healthy or not. Because if you sleep well, you can make your body have a good recovery ability.