You're Probably not Dehydrated: The Eight Glasses of Water a Day Myth

How much water should you drink every day? Not as much as you've been told. This summer, like many summers before it, has seen a rash of articles warning us not only that is dehydration is dangerous, but that it is also ubiquitous. Real dehydration, when your body has lost a significant amount of water because of illness, excessive exercise or sweating, or an inability to drink, is a serious issue. But people with clinical dehydration almost always have symptoms of some sort. These reports are worried about something completely different. They fear that otherwise healthy adults and children are walking around dehydrated, so many that dehydration has reached epidemic proportions. Under scrutiny, however, this assertion fails to hold water. That's the topic of this week's Healthcare Triage. This was based on a piece Aaron wrote for the Upshot a while ago. If you want to read more, links can be found there: http://www.nytimes.com/2015/08/25/upshot/no-you-do-not-have-to-drink-8-glasses-of-water-a-day.html John Green -- Executive Producer Stan Muller -- Director, Producer Aaron Carroll -- Writer Mark Olsen -- Graphics http://www.twitter.com/aaronecarroll http://www.twitter.com/crashcoursestan http://www.twitter.com/johngreen http://www.twitter.com/olsenvideo And the housekeeping: 1) You can support Healthcare Triage on Patreon: http://vid.io/xqXr Every little bit helps make the show better! 2) Check out our Facebook page: http://goo.gl/LnOq5z 3) We still have merchandise available at http://www.hctmerch.com

Comments

Smunchyflincher: More pictures and animation for us ADDers pls.

george duncan: 👌👌they creating new illnesses one Study $$$$$$at a time

harmonicaveronica: I was dehydrated once and it was one of the worst physical experiences of my life. I was horribly dizzy for hours on end and my stomach Did Not Like It. After that I learned not to ignore the much earlier physical symptom of feeling inexplicably and overwhelmingly sleepy despite getting enough rest the night before.

Writer Moribund: Hold Water symbol smashes

My HHO future: Yeah I gotta troll this..
Water is life, it's in everything we eat and drink. Yes, food and drinks are fairly hydrating, and neutricious. neutricion needs transport material (Water) to do the neutricious things food and drink does for us. (Requiring water) you are supposed to drink 1 oz of water for every pound you weigh. (Roughly) yes, the water you buy, vs. The stuff on tap is better for you.
Flint Michagan is a prime example of topical exposure to toxic contaminants. Heated water sprayed on people in showers, is like taking a lead bath. Skin, being micro pourous soaks in water. Even Obama is shown to drink kangen water, sanitize his hands in water. This is in response to drinking water as a right groups like FAN, (Fluoride Action Network) for fluoride free water. Which is a whole other evil, I just don't care to get into.

Ali Almaidan: I used to drink 10 to 12 water of glasses a day now i feel burning sensastion in my left abdomen n the side of my stomach n the worst part is after passing stool or urine its like my anus is on fire.

Darren Palmer: I love this dude. He breaks it down so intricate, yet so simplistic!!

Alex Mindock: ironically, the ad before the video was for the Pur water filter

Jennifer Trotter: Nestle's plan is clearly to privatize all the water supply while creating a dehydration panic. One the other hand, if kids drink water rather than chocolate milk, that can only be a good thing. Lets just make sure it isn't Nestle branded water. Our taxes already pay for remarkably clean* water available at will from several shiney spigots in our very own homes. Why pay for it again? Refuse to do so and drive the water hoarders out of business. (Everyone sell your Nestle stock first.)

*Obviously some municipalities have absolutely fucked up their duty to provide clean water, and a few people live off grid and provide their own. But generally, almost everyone in the US (and every other first world nation) has immediate unlimited access to clean drinkable water.

Vittaya Laohapanich: Could you cover alkaline water? Seems like snake oil.

Chris Johnson: I feel way better when drinking 96 - 144 oz / day than when drinking, say only 48

Tristan McIntosh: It would be really great if you did a video on how much pure water is actually necessary if at all, and the pros and cons of drinking certain amounts of water each day

Quintin Hansen: maybe making people drink more water will reduce the amount of soda they drink

Brazen Aden: I'm buying your myth book lol. You are the man. LOVE IT!

Daniel Turner: Why urine osmolality? Wouldn't serum be a better metric? I have DI , low urine osmolality, but can be dehydrated with high serum osmolality. (when I'm not on my meds)

Anguel Roumenov Bogoev: From my anecdotal experience, many people basically don't drink water at all. This is the sort of nonsense that can motivate people to drink water instead of some less healthy option with high sugar content, so I'm not really that concerned. I think the bigger issue is people being convinced that tap water is not safe to drink(therefore opting to buy massive amounts of water in plastic bottles) which I'm sure was greatly exacerbated by the Flint MI incident.

Jace Robinson: I wish you were my gp. Someone with a actual brain and critical thinking ability

kng_ flxx: Good to know
but these anecdotes are powerful, mine included

s2ac: if you piss clear your properly hydrated. if not drink more water

Rachel Evans: this video is making me thristy af

Your name:

Your comment:

Video on this topic

World’s Most Asked Questions: How Much Water Should I Drink a Day?

World’s Most Asked Questions: How Much Water Should I Drink a Day?

People ask Google everything under the sun. One of the most commonly searched questions in the world is “How much water should I drink a day?” SciShow ...

The Drink 8 Glasses Water Per Day Big Fat Lie!

The Drink 8 Glasses Water Per Day Big Fat Lie!

Find Your Body Type: http://bit.ly/BodyTypeQuiz Dr. Berg goes through the 5 lies about drinking more water. It is one of those "everyone knows", so drink when ...

How Much Water Do We Really Need to Drink?

How Much Water Do We Really Need to Drink?

Does the saying that you need eight glasses of water a day actually hold water? Trace looks at how much H2O you really need to drink to keep your body in ...

VIDEO: Myths and truths about drinking water

VIDEO: Myths and truths about drinking water

Here are six of the most prominent myths about drinking water Myth #1: Drinking lots of water will curb your appetite Fact: The only weight-loss benefit of drinking ...

The Eight-Glasses-of-Water-a-Day Myth

The Eight-Glasses-of-Water-a-Day Myth

Today on The Gist, a new message of mercy emerges from the Vatican's synod meetings this year. Joshua McElwee from the National Catholic Reporter joins us ...

Hydration myths debunked

Hydration myths debunked

Drink when you're thirsty. Stop drinking when your thirst is quenched. Obey that one rule and there is no risk of dehydration. Click here for the full story: ...

Eight glasses of water rule a myth: doctor

Eight glasses of water rule a myth: doctor

The Australian Medical Association's Doctor Brian Morton discusses a UK doctor's claim that eight glasses of water a day may not be necessary to maintain ...

How The 8 Glasses Of Water A Day Myth Started

How The 8 Glasses Of Water A Day Myth Started

It's a huge myth that we need to drink 8 glasses of water a day. Produced by Devan Joseph -------------------------------------------------- Follow BI Video on Twitter: ...

You're Probably not Dehydrated: The Eight Glasses of Water a Day Myth

You're Probably not Dehydrated: The Eight Glasses of Water a Day Myth

How much water should you drink every day? Not as much as you've been told. This summer, like many summers before it, has seen a rash of articles warning ...