What is Immune System?

The immune system is like your body's own superhero team, constantly working to protect you from invaders like germs and viruses. Imagine it as a security system for a house. Just like a security team monitors for intruders, your immune system keeps an eye out for anything that doesn’t belong, like bacteria and viruses. When it detects these invaders, it springs into action to fight them off. Here’s how it works: 1. **Detection**: Your immune system has cells that act like sensors, identifying germs or anything harmful. 2. **Response**: Once an invader is spotted, your immune system sends out special cells to attack it. This is like calling in the police when a burglar is detected. 3. **Memory**: After the fight, some immune cells remember the invader. If it tries to attack again, your body knows how to respond faster, like a security team recognizing a repeat offender. 4. **Healing**: After an infection is cleared, your immune system helps heal any damage, getting everything back to normal. This is incredibly important because a strong immune system helps keep you healthy and prevents illnesses. If it doesn't work well, you can get sick more often. Does that make sense? Want me to explain how vaccines fit into this picture or anything else about the immune system?