What is immunity?

Immunity refers to the body's ability to resist diseases. It is formed by a complex network of immune systems, including lymphocytes, cytokines, antibodies, and hormones. When pathogens such as bacteria, viruses, and fungi invade the body, our immune system immediately responds by producing specific antibodies to fight these foreign invaders and prevent illness. Immunity is influenced by many factors, including nutrition, stress levels, physical activity, and sleep quality. In addition, certain medications may have adverse effects on immunity. Therefore, to maintain good immune function, it is recommended to adopt a balanced diet, engage in moderate exercise, and ensure adequate sleep. Furthermore, individuals should undergo regular, standardized health check-ups to detect diseases early and seek timely medical treatment.