What are the benefits of improving immunity?

The most straightforward benefit is that you will suffer less disease and suffer less. Even if you do get infected, you will recover faster and have much milder symptoms than those around you.

In the past two years, there was a little girl who worked in operations in our company. When the seasons changed, she was bound to get infected. Flu, allergic rhinitis and conjunctivitis could be delayed for half a month. The tissues she carried with her were used up faster than office supplies. Last year, she started to go to bed early every day. She walked around the downstairs of the company for half an hour, and tried not to order takeout that was heavy in oil or salt for three meals. When the temperature dropped at the end of the year, half of the floor was coughing, and she didn't even sneeze. She joked that she no longer had to be "sick" every time the seasons changed.

Of course, these are only the surface benefits that are most easily perceived. The changes hidden inside the body are actually more real. My aunt tested positive for high-risk HPV the year before last in her physical examination. The doctor said that there is no specific medicine, and it all depends on her own immunity. After that, she went to the community square to dance for 40 minutes every day after meals. She ate more protein and fresh fruits and vegetables for three meals, and even stopped staying up late for decades. After half a year, all negative results were negative during the follow-up examination. Even the doctor praised her for her good immune status. A normal level of immunity is like a diligent internal inspector. It can not only block external viruses and bacteria, but also detect mutant cells and infected abnormal cells in the body in time, and eliminate them early, which can also reduce the risk of many malignant diseases.

If you don’t have any serious illness, you can actually feel the advantage of online immunity. I used to stay up late every day for more than half a year working on projects, and I would be so sleepy at 3 or 4 pm every day that I couldn’t open my eyes. Even if I slept all day on weekends, I couldn’t get over it. Later, I consciously adjusted my schedule and ran three kilometers three nights a week. Now, let alone working overtime occasionally, I can climb mountains with friends all day on weekends, and I can still clean up the house and go to the supermarket the next day. My overall energy level is much better.

Oh, by the way, I also need to clarify a misunderstanding here. Nowadays, many people on the Internet advocate that "the stronger the immunity, the better", and even fool people into taking a bunch of miscellaneous immune enhancers. This is actually not true at all. A reader left me a message before, saying that in order to avoid catching colds, he blindly took three supplements that were claimed to be able to "strengthen the immune system." As a result, he developed severe urticaria within two months. After going to the hospital for a checkup, he found out that he had over-supplied the supplements, and that his immune system was over-activated and began to attack his own normal tissues. Instead, he suffered a serious crime. What we usually talk about "improving immunity" is essentially to bring the immune level that has dropped below the passing line due to staying up late, sitting for a long time, and eating irregularly to a stable normal range. However, higher is not better. If you go to extremes, problems may arise.

To put it bluntly, immunity is actually your body's own 24-hour security team. It is the best state when you don't fish for fish or over-enforce the law. If you don't bother with it, it will be more effective than taking any expensive supplements.