Flashback – Hydration and Littering

Almost three years ago I wrote the following about how the incessant advice about hydration was mostly bogus, promoted by the bottled water industry and misinformed social media users. This week I ran across this Guardian article, “The truth about hydration” that reinforces everything I wrote back then. In the middle of a hot summer with TV meteorologists parroting the same reminders, it’s a good time to review.

[“The federal government announced Wednesday it will eliminate a policy that allowed national parks like the Grand Canyon to ban the sale of bottled water in an effort to curb litter.”  Fox News explains that the rules were set up in 2011 because empty bottles scattered throughout some of the parks had become a major problem.  One problem was the emphasis on bottled water.  They did not ban the sale of other beverages, such as sugary soft drinks that are typically made of sturdier plastic.  The policy was obviously not completely thought through in the first place, setting them up as an easy target for objections.

Those objections did come and the National Park Service officials changed their minds.  But instead of just admitting they were wrong or banning the rest of the soft drinks, they said they wanted to "expand hydration options for recreationalists, hikers, and other visitors to national parks."  Falling back on the idea of hydration they tried to make it sound like a health-related decision.  There are a couple of questionable aspects to this.

Later in the article is one sentence that probably gets more toward the truth:  “ The bottled water and beverage industry have previously lobbied aggressively to keep bottled water at U.S. national parks.”  As in most cases, follow the money.

But what is all this about hydration?  This is one of those urban myths that people just won’t drop.  I even heard someone talking about pre-hydration the other day, comparing drinking lots of water (or sports drink) to applying sunscreen before you go out.

More and more experts are coming forward with contrary, more balanced advice.  Here is an example.  “Drink when you're thirsty. Stop drinking when your thirst is quenched. Obey that one rule and there is no risk of dehydration,” says Dr. Stanley Goldfarb, a University of Pennsylvania kidney specialist.

Later on in that hydration article is a statement that shouldn’t surprise anyone: “Much research on human hydration [is] funded in part by bottled water industry.”

  

Another study found “no connection between hydration and the performance of athletes.”  It reiterates the sound, moderate advice to drink when thirsty.  There is no need to go overboard or walk through life tethered to a water bottle.

The final point is about bottled water itself.  I have elaborated on this subject in the past.  With a few rare exceptions or in emergency situations, bottled water is typically no purer than tap water and sells at a hundred times the price.  From time to time the bottled water companies are taken to task by some government agency for questionable practices or claims.  Some merely use tap water from another location.  Most recently a lawsuit cites Poland Spring Water for deceiving customers by “bottling common groundwater that doesn’t meet the U.S. Food and Drug Administration's definition of spring water.” 

Lately I’ve noticed in some airports an absence of the usual drinking fountains outside restrooms.  The only option is to buy the bottles from the vendors.  Again, follow the money.

Yes, it is important to have water with you when hiking in a national park (or anywhere).  It is smart (critical thinking) to buy a water bottle or canteen for the occasion and fill it at the tap or refill it at a drinking fountain. It is responsible not to throw bottles or any kind of litter around the trails or campgrounds. It shows perspective to understand that it’s unnecessary to pre-hydrate or take other extraordinary actions.  Drink when you are thirsty; it’s as simple as that.  So many of these problems can be easily solved by right behavior rather than by government regulations.]

Flashback - Bottle Your Own Water

[It was about five years ago that I first posted this about bottled water. By now everyone has at least one water bottle at home and, with a few very rare exceptions, clean running water. Of course, it's those few rare exceptions that make the news and get people all excited. But then, as now, I am interested in promoting behavior.]

It distresses me every time I see someone pushing a cart full of bottled water around the grocery store.  I always wonder what they are thinking. Don’t they understand that it’s much cheaper and just as healthy and convenient to buy a bottle once and fill it with tap water every day? While there is so much publicity about Americans who are food insecure, others still choose to spend grocery money this way.

I recently ran across this excellent posting with a good explanation for those who are not current with the science and will not choose to reject it out of hand because it doesn’t agree with their preconceived position. (One of the wisest statements I know is Paul Simon’s old song lyric: “A man hears what he wants to hear and disregards the rest.”)

The article begins with the different kinds of bottled water, how you can tell the source of the water, and what regulations apply. In general, the EPA regulates tap water, whereas the FDA regulates bottled water, but only if it is shipped across state lines. Some states regulate bottled water and the industry itself has voluntary standards.

It then goes on to address the beliefs that bottled water is purer, healthier, tastes better and is the more ecologically responsible choice.

Purity is a difficult thing to measure and prove, therefore, “the FDA prohibits bottled-water manufacturers from implying that their water is ‘safer’ or ‘purer’ than any other kind of water.”  It goes on to say: “Bottled water sources are typically tested for harmful contaminants once a week at most. Municipal water supplies are tested hundreds of times every month. Tap water may not be perfectly clear, or it may have a slight chlorine aftertaste, but according to the Minnesota Department of Health, those are merely aesthetic qualities that do not indicate the water is unsafe.”

Purity is not as big a deal as the health benefit, but here too, bottled water falls short. “In May 2005, the ABC news program ‘20/20’ sent five different national brands of bottled water and one sample of tap water taken from a New York City drinking fountain to a microbiologist for testing. The lab tested for contaminants that can cause illness, like E.coli. The results showed no difference whatsoever, in terms of unhealthy contaminants, between the bottled waters and the tap water.” Other tests have shown the same thing. The Mayo Clinic advises: “Tap water and bottled water are generally comparable in terms of safety.” From the National Geographic website:  “Not only does bottled water contribute to excessive waste, but it costs us a thousand times more than water from our faucet at home, and it's likely no safer or cleaner.” Finally, this CNN article from 2013 concludes:  “if you're buying it because you believe it's safer than tap, you may want to start heading to the sink to fill up your glass.”

Taste is also an issue.  Some people are willing to pay a price 500 times higher for better tasting water. “But a couple of very non-scientific, blind taste tests have found that most people – or most people in New York City, to be more accurate – can't actually tell the difference between tap water and bottled water once they're all placed in identical containers.”

The biggest drawback to bottled water is that many organizations and researchers consider it an “environmental nightmare.” From the production operations, to transportation, to disposal of the bottles, to the minimal recycling of bottles, the overuse of resources, the littering/landfill issues, and the associated pollution make bottled water an environmental loser. This was the National Geographic’s primary objection.

So if you are one of the people who contribute to the over $11 billion in annual bottled water sales, please note that the industry itself does not even claim that it is healthier and safer. They state it this way: “Although bottled water has often been likened to tap water, bottled water actually achieved its market stature by enticing consumers away from other packaged beverages perceived as less wholesome than bottled water.” Perhaps the best advice comes from the Readers Digest article in 2008 to “Rethink What You Drink.”

How Can You Believe Those Numbers?

Politicians and other entities trying to raise awareness to one or another kind of problem or injustice love to toss out surprising numbers to gain support for their cause. In many cases these are not real numbers. They could be based on data collected by the program itself with no effort to be unbiased, in fact, the more shocking the better. They may have been based on a single survey that made no effort to confirm results, or they may be in conflict with the results of similar surveys. Like the unverified number of discarded plastic straws based on a small survey for a grade-school project that led to such an uproar, the numbers are often repeated so many times by so many people that everyone assumes they are correct. 

With so many examples, how can we tell what to believe?

Everyone knows that ten thousand steps per day is the recommended amount to stay healthy and to boost longevity – or do they? This NPR piece tells us “the idea of walking at least 10,000 steps a day for health goes back decades to a marketing campaign launched in Japan to promote a pedometer” and is not some kind of magic number. In a recent study published in JAMA, older women who averaged 4,400 steps per day were better off than those taking only 2,700, with little or no benefit over about 7,500 steps. This finding was confirmed elsewhere.

The myth of 10,000 daily steps is akin to the 8 glasses of water daily. There is no basis. Someone made it up. The best advice, to drink when you are thirsty, continues to be drowned out by the “hydration parrots.”

Other examples include the unacceptably high number of school shootings. The Campus Safety Magazine puts the number for 2018 at 82, “the highest there have ever been since 1970.” They mention that the second highest was 59 in 2006, so it can hardly be called a trend, perhaps more of a blip. They then state that the majority didn’t happen on school property – indicating a rather loose definition of school shooting. Compare that to the Wikipedia list of each occurrence by location with a total of only 36 for the entire year.

A Time article calls into question the widely circulated number of one in five women in the US having been raped. They call that number misleading noting “the striking disparity between CDC figures and the Justice Department’s crime statistics based on the National Crime Victimization Survey (which includes crimes unreported to the police).” This article provides much detail and there is room for doubt (as I pointed out earlier), yet we continue to hear the same number.

Of course everyone also knows that crime and teen pregnancy are worse than ever – not so fast! “Violent crime in the U.S. has fallen sharply over the past quarter century.” Here is a link to that Pew survey from earlier this year showing several graphs on violent and property crimes all heading in the right direction, although you’d never know it from the news coverage. That explains why the public perception is the opposite. Likewise a site called the Seeker reports  “the fact is that teen pregnancy is low and has been dropping.”

Can the recent increase in tornados be attributed to Climate Change? This article from a Carbon Brief posting calls it highly uncertain – with references to the data. “What is clear is that there is no observable increase in the number of strong tornadoes in the US over the past few decades,” adding: “Any role for climate change in affecting the conditions for tornado formation is still very much an open question and the subject of ongoing research by the scientific community.”

Finally, are there more black men in prison in the US than in colleges and universities? It’s a handy throwaway line for a speech emphasizing victimhood, but I picked that one apart very nicely about 5 years ago.

We can’t rely on the orators, advocates, media and advertisers to get it right. Use critical thinking. Question everything.

Hydration and Littering

 “The federal government announced Wednesday it will eliminate a policy that allowed national parks like the Grand Canyon to ban the sale of bottled water in an effort to curb litter.”  Fox News explains that the rules were set up in 2011 because empty bottles scattered throughout some of the parks had become a major problem.  One problem was the emphasis on bottled water.  They did not ban the sale of other beverages, such as sugary soft drinks that are typically made of sturdier plastic.  The policy was obviously not completely thought through in the first place, setting them up as an easy target for objections.

Those objections did come and the National Park Service officials changed their minds.  But instead of just admitting they were wrong or banning the rest of the soft drinks, they said they wanted to "expand hydration options for recreationalists, hikers, and other visitors to national parks."  Falling back on the idea of hydration they tried to make it sound like a health-related decision.  There are a couple of questionable aspects to this.

Later in the article is one sentence that probably gets more toward the truth:  “ The bottled water and beverage industry have previously lobbied aggressively to keep bottled water at U.S. national parks.”  As in most cases, follow the money.

But what is all this about hydration?  This is one of those urban myths that people just won’t drop.  I even heard someone talking about pre-hydration the other day, comparing drinking lots of water (or sports drink) to applying sunscreen before you go out.

More and more experts are coming forward with contrary, more balanced advice.  Here is an example.  “Drink when you're thirsty. Stop drinking when your thirst is quenched. Obey that one rule and there is no risk of dehydration,” says Dr. Stanley Goldfarb, a University of Pennsylvania kidney specialist.

Later on in that hydration article is a statement that shouldn’t surprise anyone: “Much research on human hydration [is] funded in part by bottled water industry.”

  

Another study found “no connection between hydration and the performance of athletes.”  It reiterates the sound, moderate advice to drink when thirsty.  There is no need to go overboard or walk through life tethered to a water bottle.

The final point is about bottled water itself.  I have elaborated on this subject in the past.  With a few rare exceptions or in emergency situations, bottled water is typically no purer than tap water and sells at a hundred times the price.  From time to time the bottled water companies are taken to task by some government agency for questionable practices or claims.  Some merely use tap water from another location.  Most recently a lawsuit cites Poland Spring Water for deceiving customers by “bottling common groundwater that doesn’t meet the U.S. Food and Drug Administration's definition of spring water.” 

Lately I’ve noticed in some airports an absence of the usual drinking fountains outside restrooms.  The only option is to buy the bottles from the vendors.  Again, follow the money.

Yes, it is important to have water with you when hiking in a national park (or anywhere).  It is smart (critical thinking) to buy a water bottle or canteen for the occasion and fill it at the tap or refill it at a drinking fountain.  It is responsible not to throw bottles or any kind of litter around the trails or campgrounds.  It shows perspective to understand that it’s unnecessary to pre-hydrate or take other extraordinary actions.  Drink when you are thirsty; it’s as simple as that.  So many of these problems can be easily solved by right behavior rather than by government regulations.

Staying Hydrated

It’s summer, and a very hot one at that, so it’s important to stay hydrated (a classy word that now replaces the simple concept of drinking enough water).  This brings up the question of how much water we should drink.  It’s a simple question and in this busy world it’s always nice to have a simple answer, a rule of thumb.  The problem is that people often take these rules and follow them as if they were strict regulations.  They walk around with their oversized bottle telling you 64 ounces (8 cups) is the rule, but it’s not as cut and dried as that.  When simple questions don’t have simple answers, it’s time for some research and some critical thinking.

We need water to keep our bodies functioning properly.  Dehydration can lead to serious problems, but too much water can also be dangerous (see my March 19, 2012 posting).  According to this Johns Hopkins newsletter, “Contrary to popular belief, no research exists that says exactly how much fluid we should drink. However, many experts suggest that healthy adults should strive for six to eight 8-ounce servings of liquid a day.”

Those who cling to the rule are adamant that only water counts, but that's not necessarily true either.  “Hydration can come from a variety of sources, including fruit or vegetable juice, nonfat milk, low-sodium soup, even coffee or tea. Many fruits and vegetables, such as watermelon, berries, grapes, peaches, tomatoes and lettuce, are almost 100 percent water. Even meat is chock full of water. Water from foods typically accounts for 20 percent of the recommended total fluid intake.” 

You need more water when you exercise, when it’s unusually hot, when you are having digestive or urinary problems or when you are sick.

This short article puts it simply:  “there's no magic to this [64 ounces] number. And the right amount varies according to your activity level and size; just drink enough water so that your urine is clear.”  A slightly more detailed explanation comes from the Mayo Clinic.

It would be nice to have easy-to-follow rules of thumb for all life’s decisions, but that’s usually not the case.  That's why critical thinking is so important.  If we practice on little things like this, it becomes second nature when faced with bigger decisions or when outside influences try to win our dollars or support with simplistic platitudes or slogans.  Developing the habit of challenging this rule-of-thumb approach is one step toward moving America in a positive direction.