Published on 12 December 2021

Why Is Water Essential For The Human Body?

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Table of Contents

Whether it be a human, tree, animal, bird, or any organism, every living thing on this planet needs water for survival and existence. Water is an integral part that controls the life cycle of every individual and plays a significant role in their survival.

A human body is composed of 60-70% water, and an average human needs about 2-3 liters of water daily for better working of the body. People carry 2-3 bottles of water to work, while some even have apps on their smartphones reminding them to drink water regularly. But why do people need water, and why is it so essential for the human body? Let us know more about it. 

Why & How Much Water Do We Need?

We all know how water is crucial for our bodies. Water carries essential glucose from the blood system, removes waste from the body, maintains body temperature, etc. Without water, we can’t survive in this world.  

Every day we lose water through various activities such as sweating, breathing, urine, etc. as per some studies, men need 12 cups of fluid daily, whereas women need 9 cups. But it doesn’t mean that you should drink cups of water constantly. You can also get a satisfactory amount of water from vegetables and fruits.

As per some studies, the human body contains 70% water. This amount of water changes as per age, sex, and hydration levels.

Role Of Water In The Human Body

The role of water in our life is not only to quench thirst but also to contribute to other body functions. It is universally known thought that the human body comprises 70% water. Still, there is a need to drink water because water gets used in many processes inside the human body to ensure the proper functioning of body systems.

Here are some things that water does for the human body

  • Maintains body temperature
  • It makes the body hydrated 
  • Keeps skin healthy
  • Prevents kidney stones

Frequently asked questions

Drinking a satisfactory amount of water daily can prevent dehydration and enhance brain performance.
Health experts considered that 2 liters of water equal 8 glasses of water.
Some research shows that coconut water is comparable to sports drinks. But it's no more hydrating as compared to plain water. As a casual beverage, coconut water is considered the safest form of water.

Where Does Water Play A Major Role?

Water is used in various aspects of the body. What does it help with? It would be best if you were well-versed in it.

Regulating and Maintaining Cells And Tissues

The human body is constantly working to keep itself in a better form. The human body comprises multiple cells and tissues contributing to many life processes. These cells and tissues function continuously and need proper maintenance.

Water helps create new cells and maintains a proper balance of cells and tissues. It also helps to eliminate old cells that are no longer used in the body. It also helps provide nutrients and oxygen to the cells for better functioning.

Maintaining A Proper Balance of Hydration Levels in The Body

As the water gets used up in various body functioning activities, the water level starts decreasing in the human body. This may disturb normal functioning and can cause multiple problems.

Thus, to maintain a proper balance of water level in the body, one needs to follow an appropriate routine of water consumption to prevent dehydration. Being hydrated is very important as it regulates the proper flow of blood. 

Flushing Out Toxins

Many processes are being carried out by the human body, which involves water as a partner. Water helps the digestive system ensure the smooth flow of food through the route while assisting the kidney in absorbing valuable nutrients. During digestion and urination, many toxins and waste materials are generated, which need to be eliminated from the body. 

Thus, water helps flush the toxins and waste after absorbing the necessary nutrients and chemicals the body requires. It prevents the body from being affected by the waste materials if it stays in the body for a long time.

Better Blood Circulation

Drinking 8-10 glasses of water helps the body prevent the danger of Hypertension and blood pressure. During high blood pressure, the walls of vessels turn narrow while blood becomes thicker due to a decrease in water level. This may cause several heart diseases and can be fatal.

Water helps maintain proper and smooth blood circulation without obstruction and reduces the risk of heart-related issues.

Best Skin Moisturizer

People are cautious about their appearance and want their face, skin, and body always to look healthy. People tend to buy various products and creams to tackle skin problems such as skin dryness, acne, and pimples for better skin. But a simple habit of drinking water regularly can help people solve their problems. Water acts as a moisturizer, helps moisten tissues, and helps get better and healthy skin.

Better Muscles And Joints

Every person works so hard every day, which affects their body. People face problems in joints and muscle pain for innumerable reasons, which cause trouble for them to even step out of their chairs and walk.

Water helps and acts as lubrication in joints, ensuring better joint movement. It also 
allows for better bone health, provides blood circulation to every muscle, and eliminates the risk of muscle aches or strain risk.

Importance Of Water 

There is various importance of water. It's not just about knowing but understanding. Find more below.

Boost Brain Performance

Drinking Water has many benefits for the body; brain performance is one of those. Consuming water improves the brain’s performance by increasing blood flow and oxygen. It also helps in improving memory and concentration.

Helps In digestion

Some experts confirm that drinking water before, during, and after a meal can help the body to digest food properly. 

Improves Physical Performance 

Drinking a proper amount of water while exercising can improve your physical performance. Water can make you hydrated while exercising, making you more capable of various physical activities.

Improves Mood

Getting sufficient water can refresh you so you do your work more effectively.

Water Can Be Dangerous Too

Drinking water regularly benefits the human body in all aspects, and the results can be seen over time. But sometimes, in the flow of following the habit, people take up the practice so that they tend to drink more water than the requirement. 

Problems Due To Drinking Of Water

Muscle Weakness

Excessive drinking of water can lead to muscle weakness. It can put extra pressure on the cells in the body and make people feel weak and lethargic.

Kidney Disorders

Water is essential for the correct functioning of the kidneys. But excessive moisture can damage and affect the functioning of the kidneys. It can lead to the formation of kidney stones and chronic kidney diseases.

Disturbing Brain Activities

Excessive water consumption leads to a Cerebral enema in which fluid build-up in the brain. It affects the central nervous system by affecting the nerve stem in the brain. It can lead to severe problems such as coma, brain damage, and seizures.


Too much water consumption can decrease sodium levels in our bodies, known as hyponatremia. It could be harmful to those who have heart and kidney problems.

Constant Urination 

Drinking more water than usual can cause you to urinate continuously because when you drink more water, it impacts your kidneys to work constantly. Some studies have shown constant urination can cause stress on the kidneys.

Ways To Follow Better Water Drinking Habits

Following are the ways that can help to teach better drinking water habits:

  • Setting reminders or apps which ask to drink water.
  • Prefer water over other carbonated drinks.
  • Eat fruits and vegetables rich in water.
  • Carry your water bottle every time.

Water is undoubtedly a significant part that contributes to our life and survival. It has a lot of benefits for the human body and helps in the proper functioning of body functions. Drinking water regularly is a habit that everyone should teach to live life enjoyably. 

Bottom Line From Practical Anxiety Solution

From fulfilling the thirst to maintaining the human body’s working, Water plays an essential role in our lives. Drinking sufficient water can make you healthier and boost your immune system.

To be hydrated, we should get atleast 12 cups of water daily, but you can also get a good quantity of water from fruit juice and vegetables. Remember, too much water consumption may create problems too, so it's better to drink proper water, which your body needs.

Many of us hear that the third world war would happen only for water, but we never understand the importance of water. It's essential to save and preserve water for the next generation cause without saving, there would not be the next generation. As someone says, “If you save water, water will save you.”