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Smoking Causes 12 Different Kinds of Cancers

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Everyone knows smoking can cause lung cancer. But it also causes a whole array of other varieties of the disease, from pancreatic cancer to leukemia. Now, new research sheds light on just how deadly tobacco can be when smokers get cancer.

Smoking causes more than 48% of deaths from the 12 types of cancer sometimes caused by smoking, according to new research in JAMA Internal Medicine. Smoking caused more than 80% of lung cancer deaths as well as 77% of larynx cancer deaths. Other top cancers caused by smoking include esophagus, kidney and liver cancer.

Researchers analyzed 2011 data from interviews conducted by the Centers for Disease Control and Prevention for the study. Overall, approximately 168,000 people are estimated to die of cancer due to smoking in the United States each year.

The study’s researchers note that the prevalence of smoking has been on the decline in recent decades but argue that more needs to be done.

Continued progress in reducing cancer mortality, as well as deaths from many other serious diseases, will require more comprehensive tobacco control, including targeted cessation support,” they conclude.

This article originally appeared on Time.com.




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Many Americans Ill-Informed About Heart Failure: Survey

TUESDAY, June 16, 2015 (HealthDay News) — Large gaps exist in Americans’ knowledge about heart failure, even though nearly 6 million people nationwide have it, a new survey finds.

Nearly half of the more than 1,600 survey participants did not know basic facts about heart failure. And two-thirds confused signs of heart failure with signs of heart attack, according to the American Heart Association survey.

Respondents included the general public, heart-failure patients and caregivers of people with heart failure.

Fifty-eight percent of the participants mistakenly thought heart failure was a natural cause of death that occurs when the heart stops beating. Forty-six percent incorrectly said heart failure is a silent killer with no symptoms.

In fact, heart failure occurs when the heart can’t pump enough blood to meet the body’s needs. Symptoms include difficulty breathing, fatigue, weight gain of 3 or more pounds in a day, and swelling of the feet, ankles and legs. There is no cure for heart failure, but it can be managed.

“Being aware of the risks and symptoms of heart failure and receiving prompt and proper treatment are key to battling this disease, and that’s why these survey results are concerning,” said Dr. Gregg Fonarow, director of the Ahmanson-University of California, Los Angeles Cardiomyopathy Center.

“Heart failure is a serious, chronic condition. It requires recognition, treatment and constant monitoring of signs and symptoms to make sure the condition is not worsening, so that quick action to adjust medications or behaviors may be instituted,” he said in a heart association news release.

About one in five Americans will develop heart failure, and more than 870,000 new cases are diagnosed in the United States each year. The condition contributes to one in nine deaths nationwide, the heart association noted.

“Many people with heart failure can lead full, enjoyable lives managing their condition with proper treatment and healthy lifestyle changes,” Fonarow said. “This is why it is so important for patients and caregivers to understand the disease, and to work together to manage it.”

The survey also found that caregivers of people with heart failure were more likely than patients to know the signs and symptoms.

More information

The American Academy of Family Physicians has more about heart failure.





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Latest Supreme Court Ruling on Obamacare Looms

By Karen Pallarito
HealthDay Reporter

TUESDAY, June 16, 2015 (HealthDay News) — Millions of Americans who bought health insurance under Obamacare will soon learn the fate of billions of dollars in federal tax credits that keep their monthly health plan premiums affordable.

The U.S. Supreme Court will decide this month whether the tax credits offered to low- and middle-income Americans who buy coverage through HealthCare.gov — the federal online health insurance marketplace — are legal.

The tax credits are a linchpin of the health-reform law that’s considered President Barack Obama’s signature domestic achievement — and has been broadly criticized by most Republicans and conservatives. They view the legislation as a gross example of federal intrusion into people’s lives. The main reason: Obamacare requires most Americans to have health insurance or pay a penalty.

The tax credit showdown — known as King v. Burwell — is the latest in a string of court cases contesting core elements of Obamacare, whose formal name is the Patient Protection and Affordable Care Act.

If the Supreme Court sides with the Obama administration in the case, nothing changes.

But, if it sides with the plaintiffs — who enjoy broad support from Obamacare critics — at least 6.4 million Americans in 34 states could lose tax credits worth $2 billion a month that help pay for their health plan premiums.

A ruling against the tax credits — sometimes referred to as subsidies — also could have a potential ripple effect, jeopardizing other key provisions of the health-reform law, legal experts say.

The key point of contention in the pending case is whether people in states that failed to set up their own health marketplaces, or exchanges, to buy insurance under Obamacare can qualify for the tax credits if they use the federal HealthCare.gov online exchange.

Opponents of Obamacare insist that, as the 2010 law was written, the tax credits may only be offered with insurance purchased through online exchanges operated by individual states. But only 13 states and the District of Columbia created their own exchanges. Most of the states that chose not to create exchanges are run by Republicans opposed to Obamacare.

The Obama administration insists Congress intended to make the tax credits available to all eligible buyers, whether they use the federally run HealthCare.gov exchange or a state-established exchange.

Tax credits reduce monthly premiums by 72 percent: HHS

The Supreme Court’s ruling could further entrench Obamacare or seriously cripple it. And how it all plays out is anyone’s guess.

“Everybody agrees it’ll be messy,” said Paul Keckley, a managing director with Navigant Consulting’s Center for Healthcare Research and Policy Analysis.

Under the health-reform law, individuals making up to $47,080 and families of four earning as much as $97,000 a year may qualify for tax credits to make their health insurance more affordable.

Tax credits for insurance premiums reduce monthly premiums of federal marketplace enrollees by 72 percent, on average. People who qualify for those credits pay an average of just $105 a month for health insurance, according to the U.S. Department of Health and Human Services.

A recent Avalere Health analysis found that consumers’ monthly premium contributions could jump by 255 percent, on average, in 2015 if the tax credits are stripped away.

“It’s hard to imagine someone who is young and healthy, who was getting three-quarters of their premium paid for by somebody else, is going to continue to foot that bill,” said Elizabeth Carpenter, an Avalere Health director in Washington, D.C.

If younger, healthier people drop coverage, “individual” or “non-group” health insurance rates in the affected states — those that didn’t create their own exchanges — could surge in 2016, affecting even non-subsidized buyers. (Younger enrollees are considered a key to the success of Obamacare because they tend to be healthier and their premiums are designed to help offset the expenses of older Americans, who are more likely to be sick.)

If nothing is done to help the people who lose tax credits, “everybody in that market [those forced to buy insurance on their own] is going to be in for a rough ride,” said Katherine Hempstead, director of health insurance coverage at the Robert Wood Johnson Foundation in Princeton, N.J.

Further complicating matters, 20 states using the federal HealthCare.gov exchange haven’t expanded Medicaid, the government-run insurance program for the poor, leaving consumers with even fewer coverage options. Some 9.8 million people in those states would be uninsured in 2016 if the tax credits disappear, according to a recent Urban Institute analysis funded by the Robert Wood Johnson Foundation.

“It’s kind of a one-two punch,” Hempstead said.

Court’s decision could affect much more than tax-credit subsidies

The loss of tax credits could have a huge ripple effect.

For starters, there are the 6.4 million Americans in the 34 states who would lose tax credits worth $2 billion a month toward their health plan premiums.

What’s more, millions of people would become exempt from the law’s controversial “individual mandate” — which requires most Americans to maintain “minimal essential coverage” or pay a penalty.

The court’s decision could also potentially weaken the Obamacare mandate requiring employers with 50 or more full-time employees to provide health insurance coverage.

Large employers would likely continue to offer health insurance. But, experts said, smaller businesses might consider dropping coverage. The way the Affordable Care Act is written, employers only face penalties when workers receive tax credits through the federal and state insurance marketplaces. So no tax credits, no penalty for not offering coverage.

If the two mandates were designed to increase the percentage of Americans with health insurance, “this kind of slows that down, if not derails it completely,” Navigant Consulting’s Keckley said. Instead of reducing the nation’s uninsured rate to 7 percent by 2025, as Obamacare is projected to do, the number could double to 14 or 15 percent, he said.

Obamacare opponents see a potential silver lining in a Supreme Court decision that would end tax credits for many of those using the federal marketplace.

To fill the coverage gap, insurance companies might look to sell bare-bones “limited-benefit” plans that don’t meet Obamacare’s minimum coverage requirement but are less expensive, suggested Merrill Matthews. He is a resident scholar with the Lewisville, Texas-based Institute for Policy Innovation, which opposes Obamacare.

“Yes, millions will lose the [tax-credit] subsidy, but that also means they may be able to go out and buy a much more affordable policy,” he said.

And without the threat of penalties, some businesses that previously cut worker hours to avoid the health insurance mandate for full-time employees might restore full-time positions, Matthews added.

Politics continues to lurk in background

Depending on how the Supreme Court rules, the tax-credit subsidies could stop as soon as the end of July. People in the affected states who fail to pay the full premium could lose coverage 30 days later, according to some legal experts.

Economist Doug Holtz-Eakin, former director of the Congressional Budget Office and now president of the conservative American Action Forum in Washington, D.C., thinks there’s a good chance the subsidies won’t actually cease in 2015.

If the Supreme Court stayed the ruling for, say, 90 days, and the U.S. Treasury Department issued tax credits for the final quarter of the year, “that would get everyone through calendar year 2015,” he said.

But Boston University law professor Abigail Moncrieff, who wrote an “amicus” brief in favor of upholding the tax credits, said the justices probably would allow the decision to take effect on the “normal clock” — meaning 25 days later. The court hasn’t stayed — delayed — a ruling in a while, she said, and some members of the high court oppose the exercise of that discretion.

If the court strikes down the tax credits, what happens next will depend in large part on politics.

Polls show Americans are slightly more accepting of the Affordable Care Act, which remains unpopular with much of the nation. “Unbending opposition to Obamacare might not be the winning position it once was, even for Republicans,” said Christopher Karpowitz, co-director of Brigham Young University’s Center for the Study of Elections and Democracy in Provo, Utah.

While the Obama administration has said there’s no backup plan should the King v. Burwell challenge prevail, Senate Republicans have offered several proposals.

One includes a plan by Wisconsin Sen. Ron Johnson that would keep tax-credit subsidies for existing health plan enrollees through August 2017. It would also repeal the individual and employer mandates and allow states to eliminate Obamacare’s essential health benefits requirement and open the door for more limited-benefit plans.

Ron Pollack, founding executive director of the health advocacy group Families USA, called Johnson’s plan “inadequate — and harmful.” It fails to solve problems created by an adverse court ruling, and it creates problems “that would make health coverage unaffordable for most families,” he wrote in a recent Health Affairs blog.

Affected states could conceivably set up their own exchanges. But that would require a buy-in from state governors and legislators — an unlikely prospect with Republican lawmakers. And most state legislatures will be out of session by the summer.

“I think what consumers should expect is a period of some confusion,” Holtz-Eakin, the American Action Forum president, said.

More information

The Henry J. Kaiser Family Foundation examines the state-by-state effects of a decision to end the tax-credit subsidies.





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The Best Way to Treat Airplane Ear

Photo: Getty Images

Photo: Getty Images

I had to fly home from vacation with a cold, and now my ears are painfully clogged and I can’t hear a thing. Help!

Ouch. Airplane ear happens when there’s an imbalance between the air pressure in the middle ear and the air pressure around you, which changes rapidly with the altitude during the start and end of a flight. Yawning, swallowing or chewing gum can usually fix it by letting air flow through the eustachian  tubes—the narrow passages between the middle ear and the back of the nose—equalizing the pressure. But a cold or sinus infection complicates things because congestion can block the tubes. Result: painful pressure and hearing problems.

To clear the clog, you need an over-the-counter decongestant to encourage drainage; a nasal spray may also help calm any swelling that’s adding to the problem. Also try taking ibuprofen or acetaminophen to treat related pain. (Congested due to allergies? Go with an antihistamine.) Once you’ve given the medicine some time to work, close your mouth, pinch your nose shut and very gently push air into the back of your nose as if you were blowing it, which may help nudge the tubes open. These tactics, combined with a little patience, should do the trick, but if the issue persists or the pain gets worse, see your doc. A clog can turn into a bacterial ear infection, for which you’ll need antibiotics.

Health‘s medical editor, Roshini Rajapaksa, MD, is assistant professor of medicine at the NYU School of Medicine and co-founder of Tula Skincare.

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Why The Drive Always Feels Shorter on the Way Home

Photo: Getty Images

Photo: Getty Images

You ply your kids (and, okay, yourself) with every iPad, book, and cracker imaginable, but it happens every time you hit the road: getting to your destination feels like it takes forever, but the return trip seems to fly by, even though both distances were the same length.

So why does it feel like we enter in some sort of Harry Potter-level time shifter whenever we head home? Turns out, the phenomenon’s really a thing. Researchers in Japan have found that the effect may stem from our memories of the journey there.

RELATED: 8 Essentials for Healthy Travel

In their small study, the researchers had 20 men watch movies depicting a person’s perspective as they walked two different routes. Ten of the men saw a version where the walker went out and returned along the same route, after a 10-minute break, while the other half of the group watched the walker go out along one route and return via a different one after the same break.

During each film, the men were asked to report when they thought three minutes had gone by. Then, after they’d watched both movies, they were asked which of the two they’d seen had felt longer. While there was no difference in how well the subjects experienced three minutes going by, there was a distinction in what they thought of the trip length—participants felt that the return trip was shorter when they followed the same route in both directions.

“The return trip effect is not a matter of measuring time itself,” study co-author Ryosuke Ozawa of the Graduate School of Frontier Biosciences at Osaka University told the Los Angeles Times. “Rather, it depends on time judgment based on memory.”

RELATED: Can Frequent Travel Make Me Sick?

That is, our recollection of the trip to our destination colors how we experience the road back, though Ozawa’s not yet sure how. One theory is that we’re more familiar with the directions we need to take the second time, so that leg seems like a breeze in comparison.

Here’s another: Research conducted by psychologist Niels van de Ven of Tilburg of the University in the Netherlands in 2011 found that the so-called “return trip effect” comes from differences in traveler’s expectations going into it.

“People are often too optimistic about an initial trip after which it [feels] quite long,” van de Ven recently told the Los Angeles Times. “When heading back we think, ‘It’s going to take a long time again,’ after which it feels not as bad.”

Reverse psychology? Perhaps, but we’ll take it if it gets us home that much faster.

RELATED: Secrets to a Healthy (Happy!) Home

 




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More Research Hints at Chocolate’s Heart Benefits

By Dennis Thompson
HealthDay Reporter

MONDAY, June 15, 2015 (HealthDay News) — Eating milk chocolate or dark chocolate regularly may lower your risk of heart disease and stroke, a new study suggests.

Middle-aged or older folks who ate as much as 3.5 ounces of chocolate a day seemed to receive heart health benefits, British researchers report in the June 16 issue of the journal Heart.

And most people in the study ate milk chocolate, generally considered less healthy than dark chocolate because it contains more sugar and fat, the researchers noted.

“People who want to eat chocolate should not be worried too much about their cardiovascular health,” said study co-author Dr. Phyo Myint, chair of medicine of old age at the University of Aberdeen in Scotland. “We did not find any harmful effects of chocolate, if they want to enjoy chocolate now and again. The key is moderation.”

While the study uncovered a link between chocolate and heart health, it didn’t prove cause-and-effect.

The research team mainly based its findings on almost 21,000 adults taking part in a study that is tracking the impact of diet on the long-term health of 25,000 men and women in Norfolk, England.

Participants were monitored for nearly 12 years, on average, during which time 14 percent of them fell ill with either heart disease or stroke.

The researchers found that people who ate the most chocolate a day — up to 3.5 ounces — had a 14 percent lower risk of heart disease and a 23 percent lower risk of stroke than those who ate no chocolate.

The researchers then lumped the data in with nine other studies that measured chocolate consumption and heart disease. The combined pool involved nearly 158,000 people.

This analysis produced even stronger results. People who ate the most chocolate had a 29 percent reduced risk of heart disease and a 21 percent reduced risk of stroke, compared with those who ate the least. They also were 45 percent less likely to die from heart disease, heart attack or stroke.

Myint warned that the studies only looked at middle-aged and older people, not young adults or children.

“We don’t know how this would affect children,” he said.

These findings add to mounting evidence that chocolate appears to be heart-healthy, said Dr. Mark Urman, a preventive cardiologist at Cedars-Sinai Heart Institute in Los Angeles.

“But we still don’t know for sure what specific part of chocolate, or parts of what’s in chocolate, may be creating a benefit for heart health,” Urman said.

Chocolate contains large quantities of flavonoids — organic compounds thought to have anti-inflammatory properties, Urman and Myint said.

But other ingredients in chocolate bars may also be good for your health, including milk and nuts, Myint said. In addition, chocolate contains certain fatty acids that might help heart health, Urman said.

Most previous research has shown benefits only from dark chocolate, but this latest study included any type of chocolate. Most opted for milk chocolate, the researchers found.

Myint and Urman cautioned that this observational study could not draw a direct cause-and-effect link, and said there might be other potential explanations for the benefits found.

For example, the researchers saw that people who ate chocolate tended to be in better health.

“These people who were high consumers of chocolate tend to be younger and physically more active, they tend to have less diabetes and be less obese,” Myint said. “Although we control for these things, we can’t be 100 percent sure whether we have adequately adjusted for them.”

The findings also relied on people’s own reports of their eating habits, which can be inaccurate, Myint said.

Finally, Urman said that people should not rely on chocolate to lower their risk of heart disease or stroke.

“It’s important to have it be part of an overall balanced, heart-healthy diet,” he said. “There’s ultimately no one magic bullet out there that’s going to cure everything or prevent anything. It’s an odds game, and the more you put in your favor, the better your odds are.”

More information

For more on chocolate and heart health, visit the U.S. National Institutes of Health.





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5 Things You Should Know About Detox Teas

Photo: Getty Images

Photo: Getty Images

So-called “detox” teas have been popular for years among a certain subset of people—those likely to frequent health-food stores, say, or to consult alternative practitioners. These days, though, they’ve become big business, and a handful of celebrities are touting their weight-loss benefits on social media. In a way, detox teas have become the liquid version of waist trainers—the before and after results are often dramatic, and their celeb backing generates buzz, but you may be wondering: Do they really work, and are they safe? Before you plunk down your hard-earned money and start sipping, here are five things you should know.

You still have to diet and exercise for them to work

One detox tea brand, recently Instagrammed by Amber Rose, advises per their website that for “best results,” the tea should be consumed along with plenty of water, healthy, balanced meals, and three to five workouts a week. Another, which has been Instagrammed by several celebs, including Kourtney Kardashian, Christina Milian, and Hilary Duff, states online that the tea “…is recommended to be taken in conjunction with a healthy energy-controlled diet and regular exercise” and the website offers an accompanying meal plan for sale. Personally, I’d love to see a study comparing outcomes generated by a detox tea compared to a placebo, with both groups following the exact same eating plan, but I haven’t found any. That makes it difficult to know whether the weight-loss results people are getting from these teas are actually due to drinking them, or simply the result of  a cleaned-up diet and consistent workout routine, which we already know can lead to weight loss. In any case, simply sipping detox tea while continuing to skip the gym and order takeout is unlikely to help you shrink your shape.

RELATED: Diet Tricks Weight-Loss Pros (Only) Tell Their Friends

You might lose water weight, not actual fat

Detox teas that combine caffeine with diuretics can trigger the loss of water weight. Just two cups of water weighs one pound on a scale, so shedding fluid can make you look and feel lighter—even if you haven’t lost an ounce of body fat. Detox teas can also trigger a laxative effect, which causes your body to eliminate waste from your GI tract, another result that can make your stomach flatter, and allow you to feel lighter, even if your lean-to-fat ratio remains exactly the same. If this quick-fix effect gives you the confidence boost and motivation you need to start eating healthier and working out—the real keys to getting healthy and lean—terrific (assuming the teas are even safe to drink—see below). Just remember: If you go back to your former less-than-stellar eating or exercise habits, or stop drinking the tea, you can gain the weight right back just as quick as you dropped it.

Some detox tea ingredients can have unwanted side effects

In addition to actual tea, detox concoctions typically include additional herbs, which may be designed to curb appetite, rev metabolism, or boost weight loss in other ways. One example is senna, a plant with a natural laxative effect. According to the Natural Medicines Comprehensive Database, the potential side effects of senna use may include abdominal pain and discomfort, cramps, bloating, gas, nausea, and diarrhea; excessive use can lead to potassium depletion and other electrolyte abnormalities, which can trigger muscle spasms and an abnormal heart rhythm. Another popular ingredient in weight loss teas is guarana, a plant that’s often added to energy drinks. Its side effects are commonly related to its caffeine content, which may include nervousness, restlessness, stomach irritation, nausea, vomiting, headache, anxiety, agitation, ringing in the ears, and fast heart and breathing rates. Bottom line: Do your homework about exactly what’s in a product before you put it in your body. Even “all-natural” substances can have potential side effects, especially if they’re overused, combined with other supplements or medications that result in negative interactions, or if taken by those with pre-existing medical conditions.

RELATED: 10 Fast Weight Loss Tips (We Tried Them!)

They may interfere with sleep

Most detox teas contain caffeine, probably because this stimulant may suppress appetite, trigger your digestive system to let go of waste, and help you shed water weight. A caffeine-induced energy boost may also lead to working out a little longer or harder than usual. However, too much caffeine can also be risky (see above) and interfere with getting enough sleep—and catching too few zzzs may ultimately undo the tea’s weight-loss effects. In fact, too little shuteye has been shown to trigger excessive eating and weight gain and even slow metabolism, which can make it easier to gain weight even if you don’t eat extra calories. A good rule of thumb, regardless of where your caffeine is coming from, is to nix it at least six hours before bed. And if you’re trying to shed pounds, commit to making adequate sleep a top priority.

The research on detox teas is scant

While there are some published studies on various ingredients often found in detox teas, I haven’t seen any research on the teas themselves, particularly in the precise formulas they’re prescribed (that research isn’t required for the teas to be sold, by the way). That means that using detox teas leaves unanswered questions about if and how they work, how they should be used, how much may be too much, and possibly who shouldn’t use them. If you’re unsure, or are planning to start drinking them, talk to your doctor, nutritionist, or health care provider. Just be sure he or she doesn’t have a vested interest in the sale of the product you’re considering: If they happen to be selling or endorsing it, seek a second opinion.

RELATED: Embarrassing Questions: Is It Safe to Gain and Lose Weight Like the Stars Do?

 

What are your thoughts on this topic? Chat with us on Twitter by mentioning @goodhealth and @CynthiaSass.

Cynthia Sass is a nutritionist and registered dietitian with master’s degrees in both nutrition science and public health. Frequently seen on national TV, she’s Health’s contributing nutrition editor, and privately counsels clients in New York, Los Angeles, and long distance. Cynthia is currently the sports nutrition consultant to the New York Rangers NHL team and the New York Yankees MLB team, and is board certified as a specialist in sports dietetics. Cynthia is a three time New York Times best selling author, and her brand new book is Slim Down Now: Shed Pounds and Inches with Real Food, Real Fast. Connect with her on FacebookTwitter and Pinterest.




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Which Candidate? Study Examines the Voter’s Brain

MONDAY, June 15, 2015 (HealthDay News) — Researchers say they’ve identified an area of the brain that seems to influence how you vote.

The investigators studied volunteers who were asked to assess and vote for candidates in a mock election.

The team at McGill University in Montreal said it appears that a certain part of the brain, called the lateral orbitofrontal cortex (LOFC), must function properly in order for voters to make decisions that combine various sources of information about candidates.

If this part of the brain is damaged, people seemed to base their vote on simpler information, mainly the candidates’ looks, according to the study.

The findings were published recently in the Journal of Neuroscience.

This is the first evidence that a particular area of the brain plays a critical role in how people vote, the researchers said.

“Recent research suggests that several areas in the brain carry information about the value of decision options, but it is not yet clear how these areas work together when we make a choice,” study senior author Dr. Lesley Fellows, a neurologist and researcher at the Montreal Neurological Institute at McGill, said in a university news release.

“The LOFC appears to be important when decisions are hard, helping to select the best from among options of similar value,” Fellows explained.

More information

McGill University has more about the brain.





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‘Green Space’ at School May Help Kids Learn, Study Suggests

By Randy Dotinga
HealthDay Reporter

MONDAY, June 15, 2015 (HealthDay News) — Children’s thinking skills may develop faster if they encounter “green space” such as parks and woods in their day-to-day lives, a new study suggests.

Green space at school, in particular, was linked to improved brain development among schoolchildren in Spain.

“Children at schools with more green space around them, such as trees, shrubs and grass, have a better brain development than children at schools with less green space,” said study co-author Mark Nieuwenhuijsen of the Center for Research in Environmental Epidemiology in Barcelona.

“It is important to have green space within and around the school grounds for better brain development,” he added.

It’s possible that something other than green space is affecting the kids’ intellectual prowess, and the apparent link may be purely coincidental.

But one expert not involved with the study said other benefits of fresh air and playgrounds are already known.

“We know that living in neighborhoods with more green space has been associated with improved mental health in adults and kids,” said Kristen Malecki, assistant professor of population health sciences at the University of Wisconsin, Madison. “It also is associated with many positive health behaviors, such as physical activity.”

But proving a direct connection has been difficult. “It’s still unclear why and how these associations exist, and if greenness itself is causing the improved health and mental health,” Malecki said.

In the new study, researchers tracked nearly 2,600 Barcelona schoolchildren, aged 7 to 10, for a year to see how their memory and attention — so-called cognitive skills — developed. The children were tested every three months.

The researchers looked for possible connections between development of thinking skills and green space — defined as any space with vegetation — around their home, their school and on their commute to school.

The investigators found that students with more exposure to green space made greater gains — about 5 to 6 percent in terms of working memory and 1 percent in attentiveness — compared to children surrounded by less green space. Working memory — the ability to sort and retain short-term information — is essential for learning skills such as math and reading.

The link was strongest for green space at schools, possibly because children spend so much of the day there, the researchers suggested.

However, the study had some weaknesses. While Nieuwenhuijsen said the researchers found “little or no evidence” of wealth playing a role in boosting neighborhood greenery and brain power, most of the children came from educated families. More than half of their mothers were college-educated, the researchers said, but they noted this didn’t seem to skew the results. They also said that poorer kids may not have taken part in the research.

It’s also possible that parents with a greater focus on education are drawn to greener neighborhoods. And “it could be that there are other unmeasured factors in schools with more greenness — like better nutrition, curriculum or teacher effectiveness — but they were not measured here,” said Malecki, who was not involved in the study.

If green space does fuel the brain, how might it do so? The researchers don’t know. But they found signs that kids with the fastest-expanding brain power had the least exposure to pollution.

Also, research has suggested that just seeing green space can reduce stress, Nieuwenhuijsen said. And physical activity and peace-and-quiet could play roles, too.

Despite its limitations, “this study adds to the mounting evidence to suggest that green space is beneficial,” Malecki said. “We also know that physical activity is good for child growth and development.”

The findings suggest that the whole family can benefit from spending time together in natural environments, she added. “It may also have the added benefit of increasing brain power,” she said.

In terms of public policy, Malecki said, “evidence suggests that adding trees and ‘greening’ neighborhoods may be a simple solution to improving population health.”

The study is published in the June 15 issue of the Proceedings of the National Academy of Sciences.

More information

The National Wildlife Federation discusses benefits of outdoor play.





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Dieters May Lose Fewer Pounds When They Choose Their Weight-Loss Plan

By Carrie Myers
HealthDay Reporter

MONDAY, June 15, 2015 (HealthDay News) — Choosing which diet you like best may not mean you’ll lose more weight.

In fact, picking a weight-loss plan based on your food preferences might backfire and lead to less weight loss, new research suggests.

After comparing two groups, one in which dieters could choose one of two eating plans and one in which dieters were randomly assigned to one of the plans, the researchers found those who had a choice lost slightly less weight than those who had no choice.

“[The difference in weight loss] was not statistically significant,” admitted study author Dr. William Yancy Jr., a research associate in the Center for Health Services Research in Primary Care at Duke University, in Durham, N.C. “The weight loss was similar between the two groups. It’s just that the direction of effect was not even in the expected direction.”

For the study, published in the June 16 issue of the Annals of Internal Medicine, 207 people were randomly assigned to one of the two groups.

The study lasted 48 weeks, during which both groups received group and telephone counseling.

Researchers theorized that by allowing some people to choose a diet that included foods they liked, they would stick with it and lose more weight than those who were assigned to their diets. They even allowed the choice group the option to switch diets after 12 weeks if they were unsatisfied with their initial decision. Very few took the researchers up on their offer.

After 48 weeks, the choice group lost an average of 12.6 pounds while the other group lost an average of 14.8 pounds.

Since the study did not show long-term success for maintaining weight loss, and the difference in weight loss between the two groups was not statistically significant, could choosing a diet plan based on food preferences be better in the long run?

“That is certainly a reasonable argument,” Yancy said. “However, for those who are looking for ways to enhance the weight-loss effects of lifestyle modification, choosing a diet based on food preferences does not seem to do that.”

He added that the best diet for some may be one where they have to try new foods.

“It may require people to attempt to incorporate new foods into their diets to be most successful,” Yancy said. “The good news is that we know that our tastes can adapt to such new foods and begin to enjoy them more over time.”

Christine Santori is program manager for the Center for Weight Management at North Shore-LIJ’s Syosset Hospital in Syosset, N.Y.

“Incorporating one’s food preferences and involving the patient in the meal planning will increase long-term compliance and sustained weight loss,” said Santori, who was not involved in the research.

She did warn, though, that choosing a diet plan based on food preferences that may be high in calories could make it hard to control portion size and ultimately lead to less weight loss.

“In my opinion, it is best to select a meal plan based on one’s metabolic profile and work to incorporate the individual food preferences with patient involvement,” she said.

The researchers agreed, and added that future research should focus on matching dieters with the optimal diet by using their metabolic or genetic profiles.

“A metabolic profile could be any number of blood tests — or other tests — that reflect [what’s going on in] the body,” said Yancy. “These could include tests that are commonly done at [checkups with your health care provider], such as blood lipids, glucose or insulin [levels].”

He explained, for example, that preliminary research suggests that people with insulin resistance, low HDL (good) cholesterol or high triglycerides (blood fats) may benefit from a low-carbohydrate diet.

“As for genetic profiles,” Yancy added, “we have learned of a number of gene variants that increase risk for obesity or diabetes. It could be that people with certain variants respond better to one diet versus another diet.”

More information

Visit the U.S. National Institute of Diabetes and Digestive and Kidney Diseases for more on weight loss.





from Health News / Tips & Trends / Celebrity Health http://ift.tt/1cX71M5