The human immune system is a complex network that protects the body from harmful bacteria, viruses, and other threats. It includes organs, cells, and proteins that work together to identify and destroy foreign invaders. When a pathogen enters the body, the immune system recognizes it as harmful and triggers a response to fight the infection.
The immune system also has a memory that helps protect the body in the future. After fighting a specific infection, it remembers how to recognize that pathogen if it appears again. This response allows the body to react faster and more effectively. Understanding how the immune system works highlights the importance of maintaining good health through proper nutrition, rest, and hygiene. Shutdown123