how much water is in the human body in percentage?
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Up to 60% of the human adult body is water. According to H.H. Mitchell, Journal of Biological Chemistry 158, the brain and heart are composed of 73% water, and the lungs are about 83% water. The skin contains 64% water, muscles and kidneys are 79%, and even the bones are watery: 31%.
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When you don't drink enough water, this is what happens to your body. Water is essential for human life. It accounts for for 50-70 per cent of our body weight and is crucial for most bodily functions. Any deficit in normal body water – through dehydration, sickness, exercise or heat stress – can make us feel rotten.
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Roughly 96% of the mass of the human body is made up of just four elements: oxygen, carbon, hydrogen and nitrogen, with a lot of that in the form of water. Are we breathing less than 50% of oxygen? How much oxygen is in our blood? What percent of oxygen does our body absorb during inhalation?
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The earth has an abundance of water, but unfortunately, only a small percentage (about 0.3 percent), is even usable by humans. The other 99.7 percent is in the oceans, soils, icecaps, and floating in the atmosphere.
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In general, women have a lower body water percentage than men. This is because women have more tissue than men. The ideal percentage for adult women will fluctuate between 45 and 60%, while the ideal percentage for adult men will be between 50 and 65% of the total body.
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Jeffrey Utz, Neuroscience, pediatrics, Allegheny University, different people have different percentages of their bodies made up of water. Babies have the most, being born at about 78%. By one year of age, that amount drops to about 65%. In adult men, about 60% of their bodies are water.
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The Earth is a watery place. But just how much water exists on, in, and above our planet? About 71 percent of the Earth's surface is water-covered, and the oceans hold about 96.5 percent of all Earth's water.
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About 97 percent of Earth's water is in the ocean. The ocean covers more than 70 percent of the surface of our planet. It's hard to imagine, but about 97 percent of the Earth's water can be found in our ocean. Of the tiny percentage that's not in the ocean, about two percent is frozen up in glaciers and ice caps.
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Adipose tissue contains about 10% of water, while muscle tissue contains about 75%.
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In adult men, about 60% of their bodies are water. However, fat tissue does not have as much water as lean tissue. In adult women, fat makes up more of the body than men, so they have about 55% of their bodies made of water.
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By one year of age, that amount drops to about 65%. In adult men, about 60% of their bodies are water. However, fat tissue does not have as much water as lean tissue. In adult women, fat makes up more of the body than men, so they have about 55% of their bodies made of water.
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In a 72-kg body containing 40 litres of fluid, about 25 litres is intracellular, which amounts to 62.5%. Jackson's texts states 70% of body fluid is intracellular. Extracellular fluid (1/3 of body water) is fluid contained in areas outside of cells.
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The Institute of Medicine recommends between 2.7 liters (11 cups) and 3.7 liters (16 cups) of total water to meet the hydration needs of most healthy adults. Total water refers to water from both foods and beverages. A cup is equivalent to 8 ounces of water.
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If we use 70 kg (155 lb) to represent the average adult male, the total volume of water in the body can be calculated to be about 42 L.
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According to H.H. Mitchell, Journal of Biological Chemistry 158, the brain and heart are composed of 73% water, and the lungs are about 83% water. The skin contains 64% water, muscles and kidneys are 79%, and even the bones are watery: 31%.
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75% of the human body is made up of water. The main functions of water in living systems are as an effective biological solvent, a reactant molecule in many biological reactions, a temperature regulator, and a pH buffering agent.
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Water is a nutrient that makes up 60% of our body weight.