Why does a lack of water or heavy drinking negatively affect the body?

Lack of water or heavy drinking adversely affects the functioning of the kidneys and heart.
A person must drink properly. Lack of water or heavy drinking adversely affects the functioning of the kidneys and heart.
With a lack of water, the movement of blood, intracellular fluid, interstitial fluid is difficult due to an increase in viscosity, metabolic processes are disturbed.
However, with excessive drinking, the kidneys cannot cope with the load, swelling occurs, cardiac activity intensifies, blood liquefies, and useful minerals are washed out of the body.

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