Even from the school curriculum, we remember information about how many percent of a person consists of water. It is worth paying attention that the amount of liquid fluctuates, depending on some factors: age, condition of internal organs, human health. As we all remember, the percentage of water in the human body is 60-80 percent. Thanks to water, the body is able to do its job properly.

- Namely: the supply of nutrients to all organs; providing oxygen to the lungs; maintaining the work of the heart; release of processed substances; ensuring the stability of the internal environment; maintaining within the normal temperature; maintaining an immune system capable of resisting disease.

Headache - drink water! This is not just a statement. In fact, lack of water leads to the fact that a person feels headache attacks. Even with mild dehydration, the brain slows down its reactions. The thing is that brain cells in their composition include more than 80 percent of water. In addition, the brain is bathed by a fifth of the entire blood of the body. In addition to this, cerebrospinal fluid also affects brain cells. Together with the fluid, the brain receives important "products" - oxygen and glucose. It is these two components that directly affect the state of the nervous system. And most importantly, water removes toxins and other “harmful” substances from brain cells that should not be retained in the brain. If the body does not receive enough fluid, then headaches will be accompanied by the following unpleasant events:
-fast fatiguability; poor memory performance; slowing down the execution of actions; increased nervousness. If you can confidently say that I drink a lot of water, then a headache (at least from dehydration) is not terrible for you. Especially the use of water is recommended for those who are engaged in active mental work during the day to improve well-being and increase activity.
Summarizing all of the above, we can draw the following conclusion. Answering the question why you need to drink water, the answer is unequivocal - to maintain the body in a healthy, active form, to prevent various diseases. This means that you need to drink water every day in the required quantities. You also need to take care of the quality of the water you use.
Drinking water in the right quantities is the key to a good mood, long-term activity, healthy well-being and the absence of diseases.