What does immunity mean?

Mar 13, 2023 Source: Cainiu Health
Disease description:

Hello doctor. Yesterday I went for a check-up and the doctor told me my immunity is poor, but I don't quite understand what that means. Could you please explain what immunity means?

Doctor's answer (1)
Dr. Liu Aihua
Immunity refers to the body's ability to resist external attacks such as viruses and bacteria. Under normal circumstances, we have a strong immune system. It can accurately identify harmful substances entering the body and fight them off, preventing them from damaging healthy cells and protecting our overall health. If immunity is suppressed, the body becomes more susceptible to infections caused by viruses, bacteria, fungi, and other pathogens, potentially leading to various discomforts or even diseases. We can prevent illness by enhancing our immunity. Modern lifestyles are often fast-paced, with irregular eating habits and frequent late nights, all of which can significantly harm the body. To boost immunity, it's important to maintain good living habits: eat more foods rich in protein and vitamin C, reduce smoking and alcohol consumption, exercise regularly, and engage in physical activities that benefit both physical and mental health, such as tai chi, walking, and jogging.