Mild Dehydration Signs and Symptoms:
Dry or sticky mouth
Not peeing very much
Dark yellow pee
Dry, cool skin
If you are experiencing these signs and symptoms you will need to get yourself hydrated as quick as you can. So how do you hydrate properly? You need to daily drink eight 8-ounce glasses, which equals about 2 liters, or half a gallon. This is called the 8×8 rule and is very easy to remember.
I also found this and it may not be something you want to hear but here it is. The average beer nowadays is 4 or 5 percent. So the answer to the question “Does it hydrate or dehydrate you?” is that it actually dehydrates you. It's actually thought that if you drink 200 ml of beer, that you don't just urinate 200 ml of water. You actually urinate 320 ml of water, which is a 120 ml of dehydration.
If that was not bad enough here is Food and dehydration as well. 1) Foods high in sugar and processed foods. Examples include donuts, muffins, candy bars, ice cream and even whole grains like bread, pasta, and rice are all dehydrating. This is because to break down sugar, the body uses a lot of water.
Here is one last thing that can help you daily to identify where you are in your daily hydration.
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I am not sure if you think much about this but it is something we should all be thinking of. Hydration is a good thing, better energy, longer time on the water and maybe fewer cramps in the long run. Again just watching out for everyone, don't forget to drink even though you are in the water dehydration sucks.