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What would happen if you didn’t drink water?
Water is virtually everywhere, from 1…………………………. and ice caps, to the cells inside our own bodies. Depending on factors like location, fat index, age, and sex, the average human is between 2………………………….water. At birth, human babies are even wetter. Being 3…………………………. water, they are swimmingly similar to 4………………………….. But their water composition drops to 5…………………………. by their first birthday. So what role does water play in our bodies, and how much do we actually need to drink to stay healthy? The H20 in our bodies works to cushion and lubricate joints, 6…………………………., and to nourish the brain and spinal cord.
Water isn’t only in our blood. An adult’s brain and heart are almost 7…………………………. water – that’s roughly equivalent to the amount of moisture in a banana. 8…………………………. are more similar to an apple at 9………………………….. And even seemingly dry human bones are 10…………………………. water. If we are essentially made of water, and surrounded by water, why do we still need to drink so much? Well, each day we lose two to three liters through our 11…………………………., 12…………………………., and bowel movements, and even just from breathing.
While these functions are essential to our survival, we need to compensate for the fluid loss. Maintaining a balanced water level is essential to avoid dehydration or over-hydration, both of which can have devastating effects on overall health.
At first detection of low water levels, sensory receptors in the brain’s hypothalamus signal the release of antidiuretic hormone. When it reached the 13…………………………., it creates aquaporins, special channels that enable blood to 14…………………………. and 15…………………………. more water, leading to concentrated, dark urine. Increased dehydration can cause notable drops in 16…………………………., 17…………………………., 18…………………………., and 19…………………………., as well as signs of 20………………………….. A dehydrated brain works harder to accomplish the same amount as a normal brain, and it even temporarily 21………………………….. because of its lack of water. Over-hydration, or hyponatremia, is usually caused by overconsumption of water in a short amount of time.
22………………………….. are often the victims of over-hydration because of complications in regulating water levels in extreme physical conditions. Whereas the dehydrated brain amps up the production of antidiuretic hormone, the over-hydrated brain slows, or even stops, releasing it into the blood. Sodium electrolytes in the body become diluted, causing cells to swell. In severe cases, the 23………………………….. can’t keep up with the resulting volumes of dilute urine.
24………………………….. then occurs, possibly causing 25………………………….., 26………………………….., and, in rare instances, 27………………………….. or 28…………………………... But that’s a pretty extreme situation. On a normal, day-to-day basis, maintaining a well-hydrated system is easy to manage for those of us fortunate enough to have access to clean drinking water. For a long time, conventional wisdom said that we should drink eight glasses a day. That estimate has since been fine-tuned. Now, the consensus is that the amount of water we need to imbibe depends largely on our 29………………………….. and 30…………………………...
The recommended daily intake varies from between 31…………………………. liters of water for men, and about 32…………………………. liters for women, a range that is pushed up or down if we are healthy, active, old, or overheating. While water is the healthiest hydrator, other beverages, even those with 33…………………………. like coffee or tea, replenish fluids as well. And water within food makes up about 34…………………………. of our daily H20 intake. Fruits and vegetables like 35…………………………. , 36…………………………. , and even 37…………………………. are over 90% water, and can supplement liquid intake while providing 38…………………………. and 39…………………………. .
Drinking well might also have various long-term benefits. Studies have shown that optimal hydration can lower the chance of 40…………………………. , help manage 41…………………………., and potentially reduce the risk of certain types of cancer. No matter what, getting the right amount of liquid makes a world of difference in how you’ll feel, think, and function day to day.
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