1. It lubricates the joints
Cartilage, found in joints and the disks of the spine, contains around 80 percent water. Long-term dehydration can reduce the joints’ shock-absorbing ability, leading to joint pain.

2. It forms saliva and mucus
Saliva helps us digest our food and keeps the mouth, nose, and eyes moist. This prevents friction and damage. Drinking water also keeps the mouth clean. Consumed instead of sweetened beverages, it can also reduce tooth decay.

3. It delivers oxygen throughout the body
Blood is more than 90 percent water, and blood carries oxygen to different parts of the body.

4. It boosts skin health and beauty
With dehydration, the skin can become more vulnerable to skin disorders and premature wrinkling.

5. It cushions the brain, spinal cord, and other sensitive tissues
Dehydration can affect brain structure and function. It is also involved in the production of hormones and neurotransmitters. Prolonged dehydration can lead to problems with thinking and reasoning.

6. It regulates body temperature
Water that is stored in the middle layers of the skin comes to the skin’s surface as sweat when the body heats up. As it evaporates, it cools the body. In sport. Some scientists have suggested that when there is too little water in the body, heat storage increases and the individual is less able to tolerate heat strain. Having a lot of water in the body may reduce physical strain if heat stress occurs during exercise. However, more research is needed into these effects.