Why You Need Water in Your Life [Infographics]

What Does Water Do For You?  Infographic from USGS
The human body is composed of approximately 55% to 65% water.

This varies depending on age, sex, and the amount of fatty tissue vs. lean muscle mass you have.

Babies and kids have more water than adults.

Men tend to have more water than women.

Individuals with a higher percentage of lean body mass have more water than those with more fatty tissue.

It is estimated that the human body needs approximately two quarts of fresh water per day.

The actual amount needed again depends on various factors - including age, weight, health status, activity level, and the climate where you live.  Thus, for example, a very active adult living in the desert will require significantly more water than a sedentary adult living in a cool climate.



Water is critical to human survival

  • Water is the major component of most body parts.  
  • Water forms saliva in the mouth, where digestion starts and then helps to convert food into compounds and components needed for survival.  
  • Water is needed by the brain to make neurotransmitters and hormones.  
  • Water helps to regulate body temperature through respiration and sweating.  
  • Water detoxifies the body by flushing out body waste - primarily through urine but also through perspiration.  
  • Water helps deliver oxygen to cells all over the body.


Chronic dehydration

Why You Need Water in Your Life
Infographic - HealthWorks.my
It is estimated that approximately 75% of Americans are chronically dehydrated.  Chronic dehydration is implicated in many chronic diseases and illnesses and can present in a wide variety of symptoms including fatigue (loss of or low energy), constipation, high or low blood pressure, eczema and other skin conditions and pain (thought to result from the build up of toxins).


Dehydration, weight gain, obesity and weight loss
Why Dehydration Makes You Fat and Sick

It is estimated that about 37% of people mistake thirst for hunger, causing them to eat when they are not hungry and taking in extra calories.

Dehydration also puts the body into a state of drought, creating a strong stress response, and cutting down the energy supply to the brain, organs and body tissues.  In this state of stress, the body responds by mobilizing stress hormones, such as cortisol.  The connection between high circulating cortisol, weight gain and impeded weight loss efforts has been shown in many scientific studies.  This is why weight loss and wellness experts always advise people to drink adequate amounts of water - not only for general health but also to lose or maintain body weight.

These two infographics illustrate some of the key functions of water and show why its so essential to follow a daily regimen of adequate water intake.  For more information, visit:

What Does Water Do For You?  The Water in You - The USGS Water Science School
Why You Need Water in Your Life - HealthWorks.my

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