Everything You Need To Know About Kids Health - How The Body Works

Everything You Need To Know About Kids Health - How The Body Works

by Sally Walters


Kids Health: How the Body Works


Our bodies have complicated systems made up of cells, tissues, organs, and organ systems. It might seem hard for even an adult to understand the complexity of our bodies. This is why, to live a balanced and happy life, kids should understand their needs.

Learning how our bodies work from a young age can help you prevent some health problems. This is why - on this International Children’s Day - we’ll help you ‘transform’ some basic - but very important - information in a way in which you can pass it on to your child.

Let’s learn about kids' health: how the body works, what it is made of, what happens if one of our body’s components fails, and how we can ensure its well-functioning.


The systems of the body

There are 7 major body systems. Let’s see what they are and how they interact with each other to keep the “machine” alive and working well.

Cardiovascular system

The cardiovascular system is an amazing highway that travels through your entire body connecting all your body cells and delivers vitamins, water, and oxygen.

The heart is part of the cardiovascular system. A long time ago, people even thought that their emotions came from their hearts, maybe because the heart beats faster when a person is scared or excited.

Respiratory system

The respiratory system includes your airways, lungs, and blood vessels. The muscles that power your lungs are also part of the respiratory system. These parts work together to move oxygen throughout the body.

Digestive system

Helps you sort out the food you eat by breaking down food into nutrients (good) and waste (unneeded). 

Nervous system

Think of it as your control center that transports messages to and from the brain

Muscular system

Allows you to move freely and supports your bones.

Skeletal system

Gives the body shape, support, and protection.

 Immune system

Defends the body against things that may harm it.


The organs of the body

Organ systems are made up of… well… organs. Just like in any sports team, they work together to perform a specific function for the body as a whole. Let’s see which ones are the basic organs of the human body and what they do exactly. 

The brain

The brain is the commander! Basically it is the control center of the nervous system and is located within the skull. Its functions include coordinating muscles, helping you speak, storing memories, and feeling emotions.

The lungs

Your lungs are sponge-like organs that help you breathe. The oxygen is then carried to the heart to be pumped throughout your body. The lungs filter unwanted toxins (carbon dioxide) from your body when you breathe out.

The liver

Your liver is the organ below the lungs that acts as a filter for the blood. Impurities are filtered by the liver. The liver is the only internal organ that can regrow.

The kidneys

The kidneys help to keep our bodies clean from toxins. Without our kidneys, our blood would quickly become poisoned. 

The bladder

The bladder is a muscular organ that stretches to store urine and contracts to release urine.

The heart

Your heart is between the two lungs at the front of your chest. The heart helps blood circulate through your body. You know your heart is working because you can feel your heartbeat and you can feel the blood at your pulse.

The stomach

The stomach holds our food when we first eat it and helps to break down our food. This is known as digestion. Even before you eat, when you smell tasty food, see it, or think about it, digestion begins.

The intestines

The intestines are divided into two major sections: the small intestine and the large intestine. The function of the small intestine is to absorb most of the food you eat. The large intestine is responsible for the absorption of water and the elimination of solid waste material (food that you don’t need anymore).


What happens to the body when one organ is not working properly?

When the body’s balance is disrupted, the body’s systems may not function properly, and your health can suffer. You start to feel bad! The human body is a complex organism where every organ is interconnected with each other. If a particular organ stops its function or functions poorly, then soon the other organs will follow. Luckily, there are a few things we can do to prevent unpleasant surprises.

How to take care of our bodies

Whether you’re an adult or a kid, it is important to take precautions and take care of our bodies appropriately. Our immunity plays a huge part in making sure that our mind and body function well. A strong immune system can help you be a superhero every day - improving your focus, mood, and productivity.

Here are a few things that your kids should do to ensure a balanced lifestyle:

Eat well

How your child eats today can have a huge impact on their health throughout adolescence and adulthood. Eating food containing important nutrients helps children grow, and is essential for children’s mental and physical development. It is important to experiment with diverse foods as much as possible. 

Physical activity

Physical activity is any activity that involves moving your body. It includes everyday activities, physically active play, or organized sports and has lots of health benefits for children. It can strengthen children’s bones, muscles, heart, and lungs, improve their coordination, balance, posture, and flexibility, and help them stay at a healthy weight.


An important part of everyone’s routine, sleep is an indispensable part of a balanced lifestyle. Studies have shown that kids who regularly get an adequate amount of sleep have improved attention, behavior, learning, memory, and overall mental and physical health. 


As children grow, they need to get adequate amounts of nutrients that help build strong bones. Vitamins and minerals are essential to helping your body develop and function properly. While some of us can get the vitamins we need from food alone, others need a little extra help. Vitamin C, for example, is important for keeping body tissue in good shape.

Suitable for children 4 and up, Elderberry Hill’s Vitamin C Liquid Drops act as an immune and energy booster. Formulated with care, it is organic, vegan, and non-GMO. It does not contain any added sugar, but it is still tasty. Infant Vitamin C Liquid Drops (0-12mos) and Baby Vitamin C Liquid Drops (1-3yrs) are also suitable for the little ones to strengthen their natural defense mechanisms.


Kids are learning to communicate about their body and its needs. They need you to teach them the right words for their body parts, and how to tell you how their body is feeling. Hopefully, our introductory guide helped you teach them everything about kids' health and how the body works, and also helped set them up to take care of themselves later in life.