What happens if you don't drink a lot off water

If you don't get enough water, hard stools and constipation could be common side effects, along with abdominal pain and cramps.Dull skin. Dehydration shows up on your face in the form of dry, ashy skin that seems less radiant, plump and elastic. Fatigue.

if someone drinks a lot of water it leads to hyponatremia.

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since you have not provided the options here i   am going to give you general overview about hormone.hormone are actually the part of endocrine system in our body and produced by the endocrine glands. the hormones act like a chemical messenger   within human body. once produce by the glands they   travel through the blood stream and reach at specific or target tissue and organs   which result in control of our body function. the hormones are specific in their work and work on only the targeted tissue or organ   . with the of hormone endocrine system regulate the heart rate , metabolism, our mood and   growth as well as the development and even the sleeping cycle etc. they actually are the messenger for body cell and organs .