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It is the best blog to know about the hydration, because one of my friend did not drink much water that's why he has some urine problem. But, when we gave him more water to drink daily then he feels fine and now, do not have any problem. And, as I searching about the hydration then I found your blog where is written about the drinking more water daily to keep hydrated. But, basically, I used some rehydration powder that are very healthy to keep me hydrated.