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Facts About Water in the Human Body

Last updated date: 01st Mar 2024
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Overview of the Human Body Water

Have you ever wondered what our body is made up of? Our body is mainly made up of water and other compounds like proteins, carbohydrates, and nucleic acids. But the human body consists of at least 70% of water. Water helps our body to carry out daily functions. Water is indeed an essential element for all living organisms.

There are a lot of things that make water necessary for our bodies. Water does everything from cellular functions to the digestion process to help improve concentration levels. The article below will lighten everything we need to know about water. Like, why we need to drink water and some interesting facts about water. Keep reading to find out what portion of your body is water.

Water-an Essential for the Human Body

Water-an Essential for the Human Body

Water and the Human Body

Drinking water regularly is much more than just quenching one’s thirst, it is a requirement to keep our body functioning properly and keeping healthy. All our systems within the body depend upon water for their proper functioning and survival.

The water we drink is absorbed and circulated throughout the body in the form of bodily fluids like blood. The body, in turn, performs numerous functions to keep us alive.

Drink Water Regularly

Drink Water Regularly

Ways in Which Water Works

You will be amazed to know what staying hydrated can do for the body.  Following are certain ways in which water does wonder to your body and ways in which it works and helps our body:

  • It helps dissolve the nutrients and minerals in our body to make them more available to our bodies.

  • Water lubricates your joints, which helps us to function better.

  • It protects our body's organs and tissues by keeping them hydrated. This helps the organs to retain their normal level of moisture. For example, water helps to transport nutrients and oxygen to the cells, removes waste products, and regulates body temperature.

  • Water helps create saliva. 

  • It acts as a shock absorber for the spinal cord, foetus as well for brain.

  • It controls our body temperature through perspiration and sweating.

  • It helps moisten the tissues in the eyes, mouth, and nose.

  • It helps us to avoid constipation.

Water: Stay Hydrated!

Water: Stay Hydrated!

Interesting Facts about Water in the Human Body

Some interesting facts about water include:

  • Water consists of one oxygen atom and two hydrogen atoms.

  • The amount of water required by our body depends upon gender, age, muscle fat, body fat, climate, and how active or lazy we are.

  • An adult male needs 130 ounces of water, and a female needs 91 ounces of water daily.

  • Daily fluid intake: It is the amount of water we consume in a single day.

  • One glass of tap water has no calories, no fats, no proteins, and no carbohydrates, but it contains about 12 milligrams of sodium.

Benefits of Drinking Water

Benefits of Drinking Water

Functions of Water in the Body

We are quite often told to drink plenty of water. , but why is water an important source for our body? Below are some of the important functions or ways in which water works in our bodies.

  • Water helps the body in getting rid of waste through urine and sweat. 

  • It helps the body in retaining normal body temperature. 

  • It softens the food in our stomach, which gets easier to digest. 

  • It acts as a medium for the transportation of substances in the body. 

Human Body Water Percentage

Different parts of the body consist of different percentages of water. Let’s have a look at the percentage of water in the human body chart.

Brain: 75%

Blood: 83%

Kidneys: 83%

Liver: 85%

Bones: 22%

Heart: 79%

Muscles: 75%

Lungs: 78%

Teeth:         10%

Skin: 75%

Fun Facts for Kids

It is important to know how and why to stay hydrated with water. Let’s see some fun facts about it.

  • Our body requires a minimum of two litres of water daily to stay healthy.

  • Did you know that the weight of our body contains at least 60% water?

  • We also get water from the food that we eat. 

  • Did you know that 90% of water is in the fruits and vegetables we eat? 

  • Every day our mouth produces one litre of saliva.

  • Our body loses water in many forms, like when we sweat, pass urine, also when we cry in the form of tears and the form of blood as well.

  • Kids and babies have more water than adults.

  • We can only survive for three days without water, after which our body parts will stop functioning properly.


From this article, we have learnt that Water is an essential nutrient required for the human body. As our bodies cannot create water, we need to drink water to add it to our bodies. Drinking the minimum requirement of water can help our body function better and improve our health overall. Even though the percentage of water varied with age, sex, and body type but should maintain a level of 60%. Water is pivotal to keeping the body working correctly.

FAQs on Facts About Water in the Human Body

1. How do we make sure that the child drinks enough water?

The kids must drink enough water required by their bodies. Sometimes adding a different flavour to the water makes it flavorful to drink. You can add some drops of lemon to give it a different taste by ensuring that whenever the child leaves the house, they carry a bottle of water or freeze some fruits that can be used as ice cubes in water.

2. What happens if we do not drink enough water?

If we do not drink enough water regularly, it may lead to dehydration and constipation, leading to loss of concentration and memory concerns. Dehydration can also cause a decrease in blood flow in the skin and sweating, which can lead to increased body temperature.

3. What makes us feel thirsty?

When our body loses some salt or water in the form of sweating or sneezing, our brain signals that the body is dehydrated and needs to be replenished.