A majority of the human body consists of water. The percentage varies with age, sex, and body type but it’s about 60%. A person can maintain the balance of water in the body by taking in enough fluids during the day. Water is crucial to keep the body working correctly. There is water in every cell of the body, from the brain to the teeth.


Water also has an important structural role in biology. It fills cells to help maintain shape and structure. The water inside many cells (including those that make up the human body) creates pressure that opposes external forces, just like putting air in a balloon! Water allows everything inside cells to have the right shape at the molecular level. This is one of water’s most important roles.


Water Helps:

  • Regulate your temperature
  • Keep your mouth clean
  • Lubricate your joints and protect sensitive tissues
  • Remove harmful wastes through urine, sweat, and poop
  • Transport nutrients to organs via your blood


Most people are adequately hydrated as long as they consume water as their thirst tells them. For this reason, it’s best to listen to your body — you don’t need to count how many glasses of water you’re drinking. If you have an underlying medical condition, or you’re worried you may not be getting enough water, then ask your healthcare provider for guidance.


Dehydration has been linked to a higher frequency of:

  • urinary tract infections
  • confusion
  • kidney failure
  • slower wound healing


Although you can get water from different beverages as well as food, plain water is the healthiest form of water intake. Remember that water benefits every part of your body, and it’s rare you might drink too much of it.