Water is essential for life and makes up about 70% of the human body. It performs many vital functions like transporting nutrients, regulating temperature, and eliminating waste. The amount of water needed varies based on factors like weight, climate, exercise level, and metabolism, but on average adults should drink around 8 glasses per day for proper hydration. Dehydration can cause issues like headaches, fatigue, and impaired brain function.

2. • Water is the main element for the functioning of living organisms.
Life arose in the water and without it there is no life. In the human
body he performs functions of extreme importance. It is worth
saying that about 70% of the human body of an adult is formed by
water.

3. Water is a transparent and nearly colorless
chemical substance that is the main
constituent of Earth’s streams, lakes and
oceans and the fluids of most living
organisms.
Its chemical formula is H2O, meaning that its
molecule contains one oxygen and two
hydrogen atoms, that are connected by
covalent bonds.

4. In medicine, body water is all water content in the human
body. A significant fraction of the human body is composed of
water.
About 75% of a muscle's weight is composed of water. The
blood in turn contains 95% water, 14% body fat and 22% bone
tissue.
The human body has about 65% water in adult men and 60%
in adult women. This difference is due to the higher
percentage of body fat (with lower water content) and the
lower percentage of muscle mass (with higher water content)
of women in relation to men.

5.  A more muscular body contains more water, while on the contrary a body
with much fat has less water.
More
water in
his body.
Less
water in
his
body.

6. Blood ---------- 83%
Skin ------------ 64%
Muscles ------- 75%
Brain ----------- 75%
Heart ---------- 79%
Lungs ---------- 80%
Liver ------------ 86%
Kidneys -------- 83%
Bones ----------- 22%
Joints ------------ 83%
Lymph ---------- 94%
Saliva ------------ 95%

7. The water in the human body is a substance that exerts several essential activities for the body,
guaranteeing its balance and proper functioning of the organism as a whole. Among these functions
we have:
 Water having its role as solvent;
 Plays a key role in the elimination of toxins;
 Is part of the blood plasma, being an important component;
 Transports the products of the metabolism to the places of its elimination;
 Participation in physiological processes, such as digestion (for example);
 Guarantee the protection of certain structures of the human body;
 Regulation of body temperature.

8. Increased dehydration can cause notable drops in energy, mood,
skin moisture and blood pressure, as well as signs of cognitive
impairment.
A dehydrated brain works harder to accomplish the same amount
as a normal brain and it even temporarily shrinks because of its lack
of water.

9. Headaches
Cold
Tiredness and fatigue
Increased risk of developing kidney
infections.

10. For a long time, conventional wisdom said that we should drink eight
glasses a day.
That estimate has since been fine-tuned. Now, the consensus is that the
amount of water we need to imbibe depends largely on our weight and
environment.

11. The amount of water to be ingested depends on a number of factors
ranging from the amount of exercise performed to the temperature of the
environment in which we are.
• Climate: those who live in hot cities need more water than those who
live in cooler places. We also need more water in the summer, when
we sweat more, and therefore lose more water, than in winter.
• Metabolism: those who have a faster metabolism need more water
than those who have the slowest metabolism.
• Weight: a 100 kg person needs more water than a 50 kg. The greater
the weight, the greater the need for water.

12. • Completing water is essential in our body without it we do not
live and as we can see that it has very important roles
throughout our system. And if we hydrate well we will be
healthier.