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The hypothalamus in the brain regulates the feeling of thirst - with age the thirst centre become less effective - the feeling of thirst, which is stimulated by the release of antidiuretic hormone from the anterior pituitary gland just underneath the hypothalamus is not as effective.
Therefore it may simply be a case of older people not feeling thirsty and therefore forgetting to take in water - the kidneys may also lose there ability to reabsorb water from the filtrate passing through the nephrons and more water may be lost in urine.
If an older person has Diabetes then this could also be a cause for dehydration, however this does not tie in with the theory that they do not feel thirsty, because diabetics do have a pronounced feeling of thirst constantly
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No but if you tan alot in the sun, when your older you can have alot of wrinkles.
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They act more reckless at that age than in older years so maturity is the difference
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The older you are, the more weaker your body becomes, therefore making you more vulnerable to alcohol than before, and more prone the the bad effects it gives.
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It's not uncommon for teens to fall for someone older and 25 is not much older. Girls often fall for older guys because they mature faster and feel they have more in common with older people. At 17 she is pretty much an adult and she is attracted to an adult.
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No, Children have allot of cartilage in their bodies, which turns to bone as they grow older.
