1 Men who look healthy and live a long life are characterized by large lung capacity. In fact, vital capacity is an item that must be measured during reading and physical examination. Why? Because from here, we can measure whether the cardiopulmonary function is healthy or not, and we can also measure a person's physical strength. If a man reaches a certain age and his lung capacity is still so good, then he is healthy and long-lived.
The second feature is that the stomach is normal. In fact, a normal stomach is a very important signal of a man's health. In modern life, there are often many people whose stomach function is not very good, and there are often various minor problems such as stomach pain and abdominal distension, which shows that his stomach is not good and should be paid attention to in life.
The third feature is that immunity is particularly strong. In fact, immunity is like a shield of our body. With its existence, many diseases can be prevented, but if a man often has a cold and fever, it can be seen from here that his immunity is not so strong and his body is not so healthy.
The fourth and most important characteristic is optimism. Having a good attitude can make our bodies better. As the saying goes, laugh less and laugh less for ten years. This is the importance of a good attitude to a healthy body. If a man can keep an optimistic attitude, his health will be much better. If a person is depressed and unhappy all day, his health will become very poor.