موضوع انجليزي
عن الماء
موضوع عن الماء بالانجليزي طويل
بحث عن الماء بالانجليزي
عبارات عن الماء بالانجليزي
فوائد الماء للجسم بالانجليزي
بحث عن الماء بالانجليزي
موضوع عن الماء بالانجليزي قصير جدا
موضوع انجليزي قصير وسهل جدا
تعبير عن الماء بالانجليزي ثالث ثانوي
موضوع عن الماء بالانجليزي
موضوع عن الماء بالانجليزي قصير جدا
WHY IS WATER SO IMPORTANT?
HOMEWHAT IS WATER SO IMPORTANT?
The body constantly losing water - between 2.5 and 3 liters
per day - through the exercise of its normal functions, it must be replaced to
keep the body healthy. Ironically, the feeling of thirst appears as the body
has already begun to dehydrate. That is why it is very important to drink water
often, without waiting to be thirsty. At the moment one begins to feel thirsty,
the body has already dehydrated from 0.8% to 2% of its weight.
These are some of the many roles water plays in body
functions:
Water and your brain
The cellular tissues of your brain are composed of 85% water.
When you are not well hydrated, your brain may be the first to feel the
effects, with headaches, lack of concentration and a reduction in your ability
to memorize in the short term. Even your ability to calculate and your
psychomotor dexterity can be reduced. This is because dehydration reduces the
level of energy production in the brain. Studies have shown that an
individual's ability to concentrate decreases gradually as soon as the body is
subject to a water deficiency of 1 to 2%.
Water and your blood
Blood is 95% water. It is the water that transports the
nutrients to the cells of your body and eliminates waste. When you are
dehydrated, the mechanism that regulates blood pressure will not work properly
which can lead to an increase in blood pressure.
Water and your skin
The skin is the largest organ of the human body. It is made
up of 70% water. Every day we lose water through evaporation through the skin.
The environment in which we live, with air conditioning and heating, low
humidity, soaps and other cleaners, can damage the upper layers of the
epidermis and reduce its ability to maintain a level of hydration suitable. If
you do not drink enough to compensate for the water your body loses, your skin
becomes dry. Moisturizing creams can cure the symptoms but the simplest
solution is to moisturize from the inside by drinking a glass of water.
Water and your cells
Every cell in your body needs water to function properly. On
average, one person consists of 50 to 75% water, 2/3 of which are transported
by the cells. If there is not enough water in the body these cells can not
effectively perform their roles, such as transporting nutrients and disposing
of waste.
Water and your bones
The bones are composed of 22% of water on average. It is
always the water that ensures the flexibility of the movements of the joints.
The cartilage at the end of each bone contains water to lubricate the movements
of your joints. When they are well hydrated, both surfaces slide well together,
when they are dehydrated, the danger of friction increases which can cause the
deterioration of the joints and cause conditions such as osteoarthritis.
Water and your heart
The heart is 77% water. Clinical studies have shown that
proper hydration can improve the way your heart works and thus reduce the risk
of developing heart disease.
Water and your kidneys
The kidneys are composed of 80% water. Their function is to
eliminate the waste that the body produces, this waste is dissolved in water.
When the body runs out of water, the waste is not removed effectively, which
can damage the kidneys. The National Kidney Research Foundation recommends
drinking 2 liters of water a day to reduce the risk of kidney stones.
Water and your liver
The liver is 73% water. Its function is to transform body fat
into usable energy. But if the liver is forced to help the kidneys in their
functions because of insufficient water intake, the body will store extra fat
when they would have been burned if enough water had been consumed.
Water and your lungs
Your body needs water to breathe. A person loses between ½
and 1 liter of water a day just by breathing. The lungs are 80% water. To
absorb oxygen and remove carbon dioxide our lungs must be permanently
moistened. Dehydration can make breathing more difficult.
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