Water is essential for cellular homeostasis and life and without it we can only survive a matter of days. To prevent dehydration we have a number of complex homeostatic systems that assist us in maintaining water and mineral balance.

Water is found in blood, muscles, fat, organs and in the cells of your body and there are two basic groups we divide this fluid into:

Extracellular water & Intracellular water

What do they both mean?

Extracellular Water

This is the water that is found in your interstitial fluid, transcellular fluid, and blood plasma all located outside of the cells. It makes up roughly 1/3 of your total body water. Extracellular water helps control the movement of electrolytes, allows oxygen delivery to the cells, and clears waste from metabolic functions.

Intracellular Water

This makes up the remaining fluid and is, as the name would suggest located inside the cells. Critical for many cellular processes it allows molecules to be transported to the different organelles inside the cell

The human body is made up mostly of water: 55-50% (female) and 60% (male). So drastic changes in body mass over a short time can be attributed to water gain or loss.

How much should we drink?