تعبير عن المياه بالانجليزي قصير

موضوع انجليزي عن الماء للصف الثامن فقرة  برزنتيشن بحث موضوع ملخص جاهز باللغة الانجليزية  انشاء موضوع انجليزي عن ابدا قصير كيفية كتابة موضوع تعبير باللغة الانجليزية توجيهي قواعد كتابة تعبير  بالانجليزي طريقة سهلة لكتابة تعبير بالانجليزي موضوع تعبير انجليزي يصلح لكل المواضيع كتابة تعبير بالانجليزي عن نفسك وصف تعبير انجليزي يصلح لكل المواضيع موضوع انشاء شامل لكل المواضيع موضوع يصلح لجميع المواضيع موضوع تعبير انجليزي جاهز برجراف ينفع لاى موضوع  موضوع انجليزي عن الماء تعبير عن الماء بالانجليزي قصير وسهل فوائد الماء بالانجليزي قصير بحث عن الماء  عبارات  بالانجليزي طويل فوائد الماء للجسم  قصير وسهل بحث انجليزي عن تلوث الماء  فوائد شرب الماء بالانجليزي اهمية الماء بالانجليزي مترجم تعبير عن الماء بالانجليزي ثالث ثانوي برزنتيشن عن الماء بالانجليزي  برزنتيشن عن الماء بالانجليزي قصير  عن المياه المياه المائية خمس سبع ثمان تسع اربع جمل كلمات كلام مقال علمي مقدمة

Our bodies, just like our cells, are mostly composed of water. The internal medium of the cells is a medium called aqueous, that is to say that it contains water and mineral salts. Water is therefore essential for cell survival; these die if they dry out, this is the case, for example, cells on the surface of our skin.

Some cells of our body, such as our neurons, cells of our skin or our intestines, are polarized, which means that the bottom and the top have different properties. They are not called north and south but apical pole and basal pole.

Drink 1.5 liters of water a day, a myth?

Various studies show that you should drink about 1.5 liters of water a day, or 8 glasses a day. However, the figures differ according to the research, and the different types of morphologies observed. Water is an essential need for the body, so its consumption is essential. But is it really limited to 1.5 liters a day?

The body's water needs are specific to a person's morphology, lifestyle and climate. Water represents about 60% of the body weight. But every day, a significant amount escapes from the body. Studies show that the body of a person of average size would spend more than 2 liters of water a day. The excesses are mainly eliminated by the urine, which serve to evacuate the waste produced by the body, but also through breathing, sweating and tears. These losses are offset by the diet, which represents around a liter, and liquids that are drunk.

It is therefore necessary to hydrate throughout the day, even when the thirst is not felt. Indeed, with aging, people feel less the need to drink and the risk of dehydration is possible. As well as in case of high temperatures (heat causes additional water loss), physical effort, breastfeeding and illness, it is advisable to ensure proper hydration of the body. The risk of dehydration is defined by body weight, and may be due to insufficient and prolonged water consumption. The first signs of chronic dehydration may be dark urine, dryness in the mouth and throat, headaches and dizziness, and very dry skin and intolerance to dryness. heat. In order to remedy this, it is advisable to drink as much as possible, although some studies have shown that absorbing too much water can be dangerous.