Actually, it's the other way around.
The kidney has two functions: waste excretion and water balance.
If you have too little water on board, the kidney will secrete the waste (which gives the urine its color) with as little water as possible in order to conserve water thereby making the urine more deeply yellow.
If you have too much water on board, the kidney will secrete the waste with more water in it in order to get rid of the excess water thereby making the urine more dilute with a pale yellow or clear color.
If you want to prove this, drink a six-pack of beer and let us know if your urine turns darker or lighter. :-)
Have you heard about The “Hugs” Project? It's a great group of people nationwide who are dedicated to sewing and sending evaporative cooling ties to our troops in the "sandbox". They have already sent out over 77,000 homemade "hugs", which sounds like a lot until you consider that we have over 165,000 people in the desert right now. Cooling ties are simple to make but the benefits are dramatic. They can lower body temperatures by 1 to 4 degrees.
This group was started in Edmond, OK in June of 2004 by Ray and Karen Stark and has rapidly spread to 42 states and 7 foreign countries. The need is great and you can help.
They need more people making and sending out "hugs" to our troops. Right now they're working to outfit 700 military members in one unit who are in the midst of the Sunni Triangle and they need a morale booster in the worst way. If you think you might be interested in learning more about how you can help, please send an email to: thehugsproject@cox.net and you'll be sent all the information. Each person is funding their own efforts, buying their own material and postage. These hugs cost less than $1 each to construct and mail and there is nothing that someone could buy and send to the military people in the Middle East that they would appreciate more.
Maybe you have a loved one serving in the desert but even if not, please consider if it were your son or daughter “over there”, your husband or wife. How good would you feel if a group of strangers wanted to give them a "hug" and say, "we appreciate your service to your country"?
Thank you for taking time to read this message. Would you consider joining The “Hugs” Project in time to get our military some relief from the killer heat that’s coming this summer? It’s already over 120 degrees and it’s only May.
Materials needed include 45” desert colored 100% cotton fabric, polymer crystals, sewing machine and thread and a heart for our American military members. If someone has all these things, they can help make a difference in the lives of some of America’s finest young men and women serving in harm’s way. Thank you.
K@ren
The Hugs Project - because every US service member deserves a hug.