The Importance
of Water to Human Life and to the Operation of the Human Body:
- Next to air (oxygen), water is the most
essential element to human life; the body usually cannot survive longer
than several days without water (a maximum of 1 week).
- Water is essential to the functioning of every
single cell and organ system in the human body.
- Water makes up greater than 2/3 of the weight
of the human body; the brain is 75% water, blood is 83% water, bones are
22% water, muscles are 75% water, and the lungs are 90% water.
- Water is essential for the efficient
elimination of waste products through the kidneys.
- Water regulates body temperature (through
perspiration).
- Water serves a lubricant; water forms the
fluids surrounding joints and bones, providing cushioning for the joints.
- Water prevents and alleviates constipation (by
moving food through the intestines and eliminating waste products).
- Water helps the body to absorb nutrients in
the intestines.
- Water plays a role in regulating metabolism.
- Water forms the base for saliva (necessary for
consuming and digesting food).
- Water carries nutrients and oxygen to all
cells in the body and facilitates all of the chemical processes which
occur in the body.
- Water plays a role in the prevention of
disease. Drinking adequate amounts of water can reduce the risk of colon
and bladder cancer significantly, and some studies have suggested that
water may also decrease the risk of breast cancer.
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