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Questions and Answers
What percentage of water is a newborn baby's body composed of?
Which of the following is NOT a function of water in the human body as mentioned in the text?
What can happen if a person experiences dehydration?
How much water does an average human lose daily through various means according to the text?
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Why is it important to maintain a balanced water level in the body?
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What factors influence the recommended daily water intake mentioned in the text?
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Study Notes
- The average human body is composed of 55-60% water, with babies being 75% water at birth and dropping to 65% by their first birthday.
- Water in the body plays a crucial role in cushioning and lubricating joints, regulating temperature, nourishing the brain and spinal cord, and is present in various body parts like the brain, heart, lungs, and bones.
- Daily, humans lose 2-3 liters of water through sweat, urine, breathing, and bowel movements, necessitating the need to drink water to maintain a balanced water level to avoid dehydration or over-hydration.
- Dehydration can lead to drops in energy, mood, skin moisture, blood pressure, cognitive impairment, and even temporary brain shrinkage, while over-hydration can cause sodium electrolyte dilution and water intoxication.
- The recommended daily water intake varies from 2.5-3.7 liters for men and 2-2.7 liters for women, with factors like weight, environment, health, activity level, and age influencing the amount needed.
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Description
Explore the significance of water in the human body, from its role in joint lubrication and temperature regulation to nourishing vital organs like the brain and heart. Learn about the impact of dehydration and over-hydration on various bodily functions and the recommended daily water intake.
