When we say poor immunity, it means being easily sick. In the same environment, while others are fine, you often catch colds; when others recover from a cold in 3 to 5 days a week, it takes you half a month. So, you buy various nutritional supplements, health products, and tonics, but the results aren't good. In fact, improving immunity lies in paying attention to three things in daily life.

First, it's about eating. People with good appetites generally have better immunity. I remember an elderly man who was hospitalized for surgery but had a poor recovery, and both he and his family were very worried. Later, we found out that the man had always eaten poorly and barely ate after the surgery. I told him to drink at least two cartons of milk and eat two eggs every day, along with normal three meals. If he couldn't eat, then he would have to be given intravenous albumin, fat emulsion, glucose, and so on, which would cost at least 800 to 900 yuan a day.

Of course, he also told him about the importance of nutrition for recovery from illness. Most patients still trust their doctors very much now, and the elderly recovered quickly afterward.

So as long as blood sugar and blood lipids aren't too high, there's no need to follow a strict diet. Even with high blood lipids and blood sugar, the main focus should be on controlling high fat and high sugar, while not skimping on high-quality protein. The human body's various immunoglobulins, lymphocytes in the blood, and white blood cells are mostly composed of protein. The elderly should eat more milk, lean meat, and fish, have one egg a day, ensuring sufficient protein nutrition, and their immunity will naturally improve.

Second, maintain a good mood and get adequate sleep. Poor emotional health and staying up late disrupt the body's endocrine function and metabolism, directly leading to a decline in immune function.

Third, it's important to go outdoors and get some sun, as well as engage in aerobic exercise, which can reduce chronic inflammation buildup in the body and greatly help improve immunity. Many issues like lower back pain, joint pain, inflamed gums, and sore throats will occur much less frequently. Staying indoors all day without exercise—try it for a week—and you'll find your legs feel weak just from walking outside. Immunity won't improve either.

In short, improving immunity starts with daily life—eat well, sleep well, stay positive, and exercise regularly. Thank you for watching. Wishing you health and happiness. Goodbye!