Monday, March 31, 2014

CNN.com - Health: New measles outbreak

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New measles outbreak
Mar 31st 2014, 19:26

Measles...how do you know you have them and what can you do to protect yourself?

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Health : The Atlantic: Study: Humans Can Make More than 20 Distinct Facial Expressions

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thumbnail Study: Humans Can Make More than 20 Distinct Facial Expressions
Mar 31st 2014, 19:00, by Olga Khazan

For years, scientists studying facial expressions have focused their research on six primary emotions: happiness, surprise, anger, sadness, fear, and disgust.

As a result generations of facial-expression research papers have included panels that look something like this:

Journal of Experimental Psychology

(That one is from a paper about cultural differences in the perception of facial expressions.)

Aleix M. Martinez/PNAS

Pretty straightforward, right? But when is the last time you saw someone looking just surprised, rather than, say surprised at an impromptu birthday getaway (happy surprise) or surprised at a toddler's art project, crafted with the media "peanut butter" and "wall" (angry surprise).

Researchers from the Ohio State University suspected that there's more to the human condition than these six simplest states of being. For example, as they wrote in a study published today in the Proceedings of the National Academy of Sciences, "Appall is the act of feeling disgust and anger with the emphasis being on disgust; i.e., when appalled we feel more disgusted than angry. Hate also involves the feeling of disgust and anger but, this time, the emphasis is on anger."

To prove that humans could make, and perceive, a wider range of feelings with their faces, the study authors asked 230 subjects to make a face depicting each of the following 20 sentiments: happy, sad, fearful, angry, surprised, disgusted, happily surprised, happily disgusted, sadly fearful, sadly angry, sadly surprised, sadly disgusted, fearfully angry, fearfully surprised, fearfully disgusted, angrily surprised, angrily disgusted, disgustedly surprised, hatred, and awed.

Here's how they look when laid end-to-end:

Aleix M. Martinez/PNAS

Careful, dude, it might stick that way.

The researchers then analyzed the facial muscles the subjects used to generate each expression. They found that while the "Basic Six" emotions correlated with very distinct "action units," or facial muscle movements, the combined emotions incorporated muscle movements of both of their parent emotions. So, for example, a happy person might be smiling, and a disgusted person might scrunch her nose, but a happily disgusted person ("This whole cheesecake all for me!?") would do both.

Here's the happily disgusted example, as well as fearful and surprised, which combine into "awed":

Aleix M. Martinez/PNAS

The authors determined that the more complex facial expressions were each formed using a unique combination of muscle movements. And though it confused expressions like "angrily surprised" and "sadly surprised," a computer algorithm was otherwise able to correctly classify the compound expressions about 77 percent of the time. This suggested to the researchers that there was a great degree of similarity between the subjects' portrayals of complex feelings like "hatred" or "appalled."

This study might open interesting avenues of research into disorders that impede the processing of emotions, like schizophrenia and autism.

The researchers write that this might also help people who work in human-computer interaction teach computers a broader range of human emotion. You know, so that when the robot revolution occurs, our cyborg overlords will be able to tell whether you're angrily surprised or sadly disgusted that you're being forced into a lifetime of servitude in their steel-plated underground garrisons.


    






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Health : The Atlantic: The Jobs With the Highest Obesity Rates

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thumbnail The Jobs With the Highest Obesity Rates
Mar 31st 2014, 15:00, by Olga Khazan

Employers want their workers to be healthy—both for insurance-cost and humane reasons—but aspects of those very jobs can make workers sick. A study published this month in the American Journal of Preventive Medicine found that workers who toiled for more than 40 hours per week or were exposed to a hostile work environment were significantly more likely to be obese.

Both of those are fairly intuitive—long hours at the office can make it hard to squeeze in exercise, and dealing with, shall we say, "a strong personality" all day can make it tempting to indulge in an extra helping of curly fries. (A more tragic explanation would be that people who are already obese are more likely to be harassed at work.)

But surprisingly, the researchers also found that certain industries and occupations in and of themselves correlate with higher obesity rates, even when controlling for the demographic makeup of those jobs.

The study authors used data from the 2010 National Health Interview Survey and connected it to self-reported weight and height information, as well as industry and occupation codes from the Census. For the hostility factor, they asked workers: "During the past 12 months were you threatened, bullied, or harassed by anyone while you were on the job?" (The obesity rate was 13 percent higher among those who said yes.)

Among the industry categories, manufacturing, healthcare/social assistance, transportation/warehousing, information, utilities, and public administration had the highest obesity rates:

Olga Khazan

Surprisingly, though, only the healthcare/social assistance and public administration industries had significantly higher-than-average obesity rates after the study authors adjusted for factors such as race, gender, and health behaviors like smoking.

"Public administration" means, roughly, bureaucrats in local, city, and federal offices. "Healthcare and social assistance" is anyone who works in a healthcare setting.

This is a bit odd. It's plausible that sitting behind some far-flung city hall desk might lead to weight gain; it's more shocking that people who work in doctors' offices suffer from high rates of obesity even as their workplaces preach healthy living.

From there, the researchers looked at actual job descriptions:

Olga Khazan

Protective service workers—cops, security guards, and jailers—had the highest obesity prevalence, at more than 40 percent. But again, only engineers, office administrators, and social-service workers had unusually high obesity rates after adjusting for the demographic and other factors.

In some ways, this chart simply represents a broad swathe of a country where one in three people are obese: "Engineering" is a pretty wide-ranging description, and the "office and admin" field encompasses everyone from bank tellers to receptionists.

But again, the "social service workers" category includes people working in counseling, mental health, and child protection—a.k.a. healthcare.

So why are people in healthcare jobs portlier than others? The authors think it could be because certain characteristics of those jobs—their sedentariness, for example—contributes to obesity. Doctors might be on their feet all day, but their receptionists and billing staff are glued to their desks, licking envelopes and answering phones.

But the researchers also bring up an interesting data point: An earlier National Health Interview Survey found that the occupational category "health services," which includes lower-wage clerical staff, had a much higher obesity rate than so-called "health diagnosing" jobs, which comprise higher-earning roles like doctors and nurse-practitioners.

So, as with most trends that seem to co-occur with obesity, it might all just come down to income. Your job might affect your body, but it's how much you earn, not where you work, that ultimately matters.


    






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Health : The Atlantic: What's Next for Obamacare

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thumbnail What's Next for Obamacare
Mar 31st 2014, 14:24, by Sam Baker

Obamacare's first enrollment period is ending—and with it, a half-decade of debating the law solely as a vague political abstraction.

How the Affordable Care Act would play out has been mostly a theoretical question until now; Republicans predicted it would collapse in on itself (didn't happen), while Democrats swore the public would embrace it as time went on (also didn't happen).

The end of the first open-enrollment period provides real-world data to measure the law's progress—and those results will help define the challenges the law faces as it grows out of its infancy.

We won't know for a few more weeks exactly how many people picked a plan during the six-month enrollment window, but it's somewhere north of 6 million. And we won't know until much later—if ever—how many people paid their first premium, or how many enrollees were previously uninsured.

Both of those are critical metrics for evaluating the law's performance. Neither answer, however, is likely to move the law back to the other side of the key threshold it has already crossed: signing up enough people to push ahead into 2015 and 2016.

"The ACA has survived an election and a Supreme Court challenge and a government shutdown and a website debacle, and now doubts about its enrollment totals," said Drew Altman, president of the Kaiser Family Foundation.

With millions of people signing up, the law has cleared one long, difficult set of hurdles and has defied the darkest predictions of its critics. But that doesn't mean it's out of the woods entirely—it's just on to the next long, difficult set of hurdles.

What will happen to premiums?

It's too flip to say the national enrollment data "doesn't matter"—the whole point of the law was to cover millions of uninsured Americans, and whether that's happening matters very much. But the national total doesn't say much about of the law's sustainability or what happens to premiums next year.

Premiums will go up, because premiums go up every year. The size of next year's premium increases depends on enrollment and demographics in each state, and even within specific regions of each state.

Some states are faring better than others: California is well-positioned for 2015, with enrollment above expectations and a competitive market. On the other end of the spectrum are states like Mississippi, where there's only one insurance company in the state's exchange and the population is relatively unhealthy to begin with.

The demographic mix is pretty steady across all 50 states. Nationally, young adults—the most coveted enrollees—made up 25 percent of all sign-ups through the end of February. The percentage will probably improve in the final analysis; young people were always expected to sign up at the last minute.

Generally, if the risk pool in a particular market turns out older and sicker than expected, insurers are more likely to raise their premiums. We don't know precisely what insurers expected—they all priced their plans independently, and the law includes several programs designed to absorb any surprises and keep premiums as steady as possible. In competitive markets, insurers likely will try to keep increases to a minimum, but industry insiders caution that hikes are looking likely, at least in some parts of the country.

Will people like their plans?

So, enrollment in the first is decent, and there are tools to try to keep premiums in check, which will help enrollment continue to grow. The administration will probably do pretty well at getting people into the system. The biggest challenge for the Affordable Care Act, healthcare experts say, is whether people like what they find.

"The biggest question by far is how people feel about that coverage, and whether they think it's a good deal … and what is the proportion of winners to losers," Altman said.

The "losers"—people who had their plans canceled and must pay more for an equivalent policy that might not include their doctor—have gotten more attention so far. The "winners"—people with preexisting conditions who were denied or priced out of health insurance until now—will likely get more attention as more of them actually gain coverage.

But what if even the "winners" start to sour on their coverage?

If the people who were supposed to benefit the most from Obamacare find themselves stuck in their deductibles, paying out of pocket even though they have insurance, they could "start to be very publicly unhappy," said Caroline Pearson, senior vice president at the consulting firm Avalere Health.

The risk, Pearson said, is that "you've got the chronically ill people who ... came in with the promise of good coverage and they don't find their coverage to be meaningful."

The Health and Human Services Department is already "worrying about that and trying to figure out, 'How do we give people some goodies?' " she said.

There's also a risk of consumer backlash against narrow networks of doctors and other providers. Many exchange plans have excluded expensive providers as a way to keep premiums low. That's a bigger issue for people who had coverage before than people who are gaining it for the first time, but HHS is also on guard on that front, hinting that it might require broader networks.

Even if people like their benefits, will they like 'Obamacare'?

Republicans are confident the issue will buoy them in November, and Democratic strategists acknowledge that healthcare isn't likely to turn in their favor between now and then. The best they can do is neutralize it.

The turnaround in enrollment from October to March is undeniable, and it's a big win for the White House. But even as the law has found its footing and enrollment has surged, public approval hasn't budged.

In the Kaiser Family Foundation's latest tracking poll, public opinion of the Affordable Care Act was deeply divided, as always. Forty-six percent of voters said they have an unfavorable view of the law, compared with 38 percent who rate it favorably—basically the same breakdown the poll found in September, before the disastrous Healthcare.gov launch.

"We could ask, Will the ACA cure America's energy problems or take us to Mars, and we will get an almost perfect partisan split in the responses," Altman said.

If the public is going to rethink Obamacare, it's going to take a while.

"I think over time, as the law becomes more real for the American people, a judgment based on the reality of the law will begin to supplant the role the law has played as a symbolic dividing line between left and right," Altman said.


    






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