The Importance of Water

Sidra Paige

Water is a very important element necessary to sustain life here on earth. Without water nothing can survive, especially we as humans, not only environmentally but anatomically as well.

7 Functions of water on the Human Body

There are many important functions of water but here are just a few to give you a good idea of  the importance it has on just our bodies alone.

  • Temperature Regulation- Water helps to regulate the bodies temperature which is very important. If the body's temperature is too high the heat will destroy enzymes and if the temperature is too low it decreases the body's ability to fight off disease.
  • Chemical Reactions- Without water the body cannot perform chemical reactions which allow proteins and other such products to become absorbable.
  • Transportation- Water is necessary to allow the body to transport essential materials through various systems, but most importantly the immune and digestive system. No water being carried through these two systems can cause problematic effects on the body. (See Effects of dehydration)
  • Lubricant- Water can and does serve as a lubricant. It's found in saliva which helps us swallow food, surrounds body structures such as the eyes and brain and helps protect these structure for damage internally and externally.
  • Oxygenation- Water helps the body oxygenate more efficiently. Oxygen of course is just as crucial for body function as waters. For example if muscles don't have enough oxygen they will begin to ache and after awhile could eventually be fatal.
  • Healing- Water allows the body to heal itself naturally by calling on the immune system to regulate by protecting cells and stabilizing the internal pH also known as homeostasis.
  • DNA- Prevents DNA damage and repairs DNA more efficiently.

Body Water Percentages

Scientific studies show that the human body generally contains about 65% of water overall.

  • In men the average body water percentage is 60%
  • In women the average body water percentage is around 55%
  • For children it can get up to 75%

The brain and the hear contain the highest body percentage of water with the brain  and the heart composed of 73% water, while the muscle and bones contain about 79% of water and skin about 31%. These few organs contain the highest percentages of water in the human body.

Water Consumption

On average you should consume about eight 8 once glasses throughout the day, also known as the 8 by 8 rule which is very easy to remember and enforce in your everyday life.

Effects of Dehydration

However for survival the average human being cannot go without water for more than 3 days or he/she die or at the very least suffer major health deficiencies, but of course some people have been able to survive for up to 10 days without water so it all depends on the human being and the survival situation in question.

Specific Body Heat

Specific body heat is the amount of heat required to raise any substance through 1°C of temperature, compared with that raising the same volume of water 1°C. It is very useful to:

1. It can be used to cool animals down during warming seasons or in hotter environment. Sweat - takes a lot of heat energy to evaporate the water

2. It can keep habitats a constant temperature. e.g. if it had a low heat capacity garden ponds would evaporate quickly

3. Animals need the water in liquid form for as a transport and reaction medium.

Body Fat and Dehydration

Drink water and weekly exercise helps to reduce body trans fats and it also helps you to retain it.

Dehydration is mostly caused by heat exposure, prolonged rigorous and exercise diseases of the gastrointestinal tract.

Some of the many symptoms of dehydration include:

  • Increased thirst
  • Decreased urine output
  • Irritability/confusion
  • Weakness
  • Dizziness
  • Diarrhea
  • Dry mouth
  • Lack of tears
  • Lack of sweating
  • Heart palpitations

Dehydration is so danger because many organs rely heavily on water to function is they do not receive a proper amount of water continually they will not be able to function properly which could be fatal.

Cited Pages

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