Water is also a key component of your saliva and digestive juices, whose lubricating effects aid in digestion. The water in your system also helps lubricate your joints. Without proper water intake, these organs and body processes would not function as well as they should.How does water affect the human body?
About Body Water. The combined effect is an increased amount of water in the blood. As a result, sodium is diluted and the balance of sodium and water is restored. When the sodium level becomes too low, the kidneys excrete more water, which decreases the amount of water in the blood, again restoring the balance.