Things that can happen when you don't drink enough water

By  ,  Onlymyhealth editorial team
Sep 19, 2017
Quick Bites

  • Water is the most important part of our body.
  • It makes up about 70 percent of our muscle and brain tissue.
  • Lack of water can cause discomfort and dry mucous membranes.

Water is an essence of life. It can be called the most important part of our body, making up 70 percent of our muscle and brain tissue.

When we do not consume sufficient amount of water to conform the bodies' requirements, dehydration occurs. Dehydration is a root of a wide range of medical ailments, including headache and fatigue.

Why is it so important to stay hydrated?

As we breathe, we lose moisture to the air every time we exhale. We lose as much as two cupfuls of water in this process. In addition to the water lost while breathing, we pass water through urine and sweat. If you have an exercise routine, your body will lose more water.

To make up for the loss, we need to replenish the water lost. If we don’t, we set off a physiological reaction that can have serious health effects. In other words, the body on receiving a limited or no supply of water fails to carry out normal functions.

Things that happen to your body when you don't drink enough water

Dry mucous membranes

As body loses water, it conserves and withholds unnecessary secretions such as tears. According to the University of Maryland Medical Center, even the nose may become dry due to lack of liquids in the body. Chapped and dry lips can also develop because of dehydration. Our skin contains plenty of water and acts as a protective barrier to prevent excess fluid loss. The lack of water may make you look more wrinkled.

Electrolyte imbalances

Lack of water can affect your body's fluid balance negatively, disturbing a relatively consistent concentration of electrolytes dissolved in your body's fluids. These electrolytes have a vital role to play in tissue function. The symptoms of electrolyte imbalance are muscle spasms, weakness and an irregular heartbeat.

Health risks

When there is lack of water in the body, you are at higher risk of many health problems. Dehydration ups your chances of health problems, including kidney stones, urinary and colon cancer and heart attacks.


Discomforting conditions such as headache or muscle weakness are the first signs of dehydration. These conditions can be mild or moderate depending on the level of dehydration. Lack of fluids in the body can lead to sleepiness, dizziness or light-headedness.

Slows metabolism

A person’s basal metabolic rate (the calories burned while at rest) speeds as the body becomes more positively hydrated. If you don’t drink enough, the metabolism slows down.

One can live without food for days and even months, but going without water for just one day can negatively impact health. In a nutshell, water is essential for wellness and there is no substitute for it.

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