Tuesday, August 07

The Debunker: Eight Glasses of Water a Day? Seriously?

by Ken Jennings

If you’re in the Northern Hemisphere, August is, just like the human body, at least 60 percent made of water: vacations to the beach, weekend trips to the lake or pool, big pitchers full of refreshing ice water. August is also National Water Quality Month, as you probably know, and it’s when we all have our big get-togethers to celebrate World Water Week (August 26-31!) and Sea Serpent Day (August 7). It may be hot and dry where you are right now, but at least Ken Jennings can make it rain knowledge with his August Debunker column, deflating everything you think you know about H2O.

Water Myth #1: You Need Eight Glasses Full Every Day.

Of all the far-fetched nutritional information that parents and teachers feed to kids, this might be the most dubious. Eight glasses of water? That sounds like a vaudeville act or a Third World prison torture regimen, not a kindly bit of doctor’s advice. The home ec teacher who drummed this rule into me in the seventh grade called it the “8 x 8 rule”: eight 8-ounce glasses of water, every single day. That’s 64 ounces in total: a half-gallon a day. Who drinks that much water?

read more…