Immune System

Age Recommendation: 10+

We’re Surrounded!

You are constantly surrounded by environmental threats that can invade your body and keep you from feeling your best. They’re on your hands, on the food you eat, and in the air you breathe. They’re even on your favorite toy. So if you’re surrounded by environmental threats, how do you stay healthy? It’s all thanks to one of your many amazing body systems: the immune system.

Parts of the Immune System

The immune system is responsible for protecting your body from environmental threats. To do so, the immune system uses a variety of cells, tissues, and organs, many of which are shared by other body systems. For example, the immune system’s first line of defense is your skin. It acts as a barrier that keeps invaders out. The skin is also used by your integumentary system to keep all of the important structures and parts of your body in.

Another part of the immune system’s first line of defense is the mucous membranes. Mucous membranes are the wet surfaces that line your nose, mouth, and throat. They trap the environmental threats that try to invade your body. Sometimes these threats get past your first line of defense and get inside your body. When this happens, your body has another line of defense to fight against the invaders and keep your body feeling good. This defense is made up of special cells called leukocytes, or white blood cells. These are cells that find invaders, tag them as harmful, destroy the invaders, and then remember the invaders so that if they try to attack you again, your body can stop them even faster. White blood cells are made and stored in a variety of places inside the body, such as the tonsils, thymus, lymph nodes, bone marrow, and spleen.

Supporting Your Immune System

As you can see, your immune system is very important to your overall health and well-being. To keep your body healthy and free from environmental threats, it has a lot of work to do. So what can you do to make sure that your immune system functions properly? There are lots of things! Washing your hands before eating limits the number of invaders that get into your system, thus minimizing the number of environmental threats that your immune system needs to fight. Getting enough sleep each night helps make sure that your immune system has the energy it needs to fight off invaders. Exercising keeps your body healthy and strong, which is important for a healthy immune system. Getting proper nutrition is also key to supporting your immune system. You can do this by eating nutritious, whole foods. You can also take a supplement, like doTERRA a2z Chewable™, to help you get the vitamins and minerals you need.*


Your immune system keeps your body healthy by protecting against environmental and seasonal threats that try to invade your body. The world is full of these invaders, so it’s a battle that is constantly going on. Knowing how your immune system works and why it’s important is a big step toward supporting your immune system so that it can help you stay healthy. The next time your mom or dad tells you to wash your hands, eat your veggies, or take time to exercise, remember that you’re helping your body stay healthy.

Recommended reading ages are given as suggestions and a starting point when reading dōTERRA Science for Kids content. You have a better understanding of the needs of your child and what level they are currently working at. Feel free to adjust content to better suit the individual needs of your child.

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