Immune System for Childs | Learn all about how the body fights off bad germs

When you get sick, what happens in your body to help you get better? In What Is the Immune System for Kids, you will learn how the human body fights against bad bacteria and viruses to keep it safe. And when you do get sick, certain parts of the immune system also help heal you and make you feel better. In fact, it is constantly working to battle bad germs that try to invade your body and attack you every day.

The parts that make up the immune system are the skin, white blood cells, and the lymph system. The skin is actually the body's first line of defense because it covers the whole body like a shield. This is why it's important to keep yourself clean. Since germs spread very easily by skin contact, washing your hands is one of the best ways to help prevent the spread of germs.

White blood cells are like "watchers" of the blood. They multiply constantly because they only live for a few weeks. There are three types of white blood cells, one of which specifically helps keep the body clean during the healing process. These are called macrophages. Another kind, lymphocytes, are the white blood cells that attack infections. Different types of lymphocytes have different responsibilities. Some find hidden germs and unhealthy cells and destroy while others produce antibodies to fight specific germs.

Did you know that sometimes the immune system fights against good things? When it thinks a particular food, for instance, is bad, it will attack it, causing symptoms like sneezing, itching, hives, or other reactions. In other words, it causes allergies and an allergic reaction. When the immune system attacks healthy cells because it mistakes them for unhealthy, it means the body suffers from an autoimmune disease.

Immune system for kids
How immune system works
Human body defense
Fighting germs and viruses
White blood cells
Lymph system
Skin defense
Germ protection
Handwashing for kids
Germs prevention
How body heals
Immune response
Macrophages
Lymphocytes
Immune cells
Antibodies function
Body healing process
Allergies and immune system
Autoimmune diseases
Kids science video
Fighting infections
Immune system explained
How body fights bacteria
What are white blood cells
Immune system science for kids