Showing posts with label Time. Show all posts
Showing posts with label Time. Show all posts

Thursday, April 5, 2012

A Region at War with Its History


Click here to find out more!
Oliver Munday for TIME
 

SHARE

 
One year after it captured the world's imagination, the Arab Spring is looking less appealing by the week. The promise of a new birth of freedom in the Middle East has been followed by a much messier reality, particularly in Egypt, where there have been attacks on Christians, Western aid workers and women. And now, as Egypt's presidential election approaches, we see the rise of two candidates from Islamic parties, Khairat al-Shater and Hazem Salah Abu Ismail. The former is often described as a moderate, the latter as a radical. Much of what we're seeing might well be the tumult that accompanies the end of decades of tyranny and the rise of long-suppressed forces, but it raises the question, Why does it seem that democracy has such a hard time taking root in the Arab world?
As it happens, a Harvard economics professor, Eric Chaney, recently presented a rigorous paper that helps unravel that knot. Chaney asks why there is a "democracy deficit" in the Arab world and systematically tests various hypotheses against the data. He notes that such majority-Muslim nations as Turkey, Indonesia, Albania, Bangladesh and Malaysia have functioning democratic systems, so the mere presence of Islam or Islamic culture cannot be to blame. He looks at oil-rich states and finds that some with vast energy reserves lack democracy (Saudi Arabia), but so do some without (Syria). He asks whether Arab culture is the culprit, but this does not provide much clarity. Chaney points out that many countries in the Arab neighborhood seem to share in the democracy deficit — Chad, Iran, Azerbaijan, Tajikistan, Uzbekistan — yet they are not Arab.
Then Chaney constructs a persuasive hypothesis based in ancient history — and modern economics. He notes that the democracy deficit today exists in lands that were conquered by Arab armies after the death in A.D. 632 of the Prophet Muhammad. Lands that the Arabs controlled in the 12th century remain economically stunted today. This correlation is not simply a coincidence. Scholars from Montesquieu to Bernard Lewis suggest that there was something in the political development of the Arab imperial system that seemed to poison the ground against economic pluralism. Arab imperial control tended to mean centralized political authority, weak civil society, a dependent merchant class and a large role for the state in the economy. Chaney documents the latter, showing that the government's share of GDP is 7% higher on average in countries that were conquered by Arab armies than in those that were not. He also finds that countries in the first group have fewer trade unions and less access to credit, features of a vibrant civil society.
There are less medieval factors. It has long been apparent that the dictatorships of the Middle East form close alliances with religious leaders to crowd out other leaders and groups. Coupled with a historically weak civil society, this has created a one-sided political system in which religious parties enjoy powerful advantages in ideology, organization and, perhaps most of all, lack of competition. Indonesia had religious parties just as Egypt does, but it also had powerful groups that were less religious, more moderate and entirely secular. All these groups competed for influence on an even footing, something that is not happening in the Arab world.
The real problem in a country like Egypt is that the military continues to keep power concentrated, undivided and unchecked. It maintains the central role in the economy. Even when it has liberalized control of the economy, it has done so to benefit a handful of cronies and friends. The chief challenge in the Arab world remains to create a vibrant civil society, which means political parties and also a strong, self-sustaining private sector. The term civil society was coined during the Scottish Enlightenment to describe the activities of private businesses, an independent force that existed between the government and the family. The Middle East today has strong families and strong governments, but everything in between is underdeveloped.
If the dysfunctions in the Arab world have ancient roots — going back over a thousand years! — this does not mean that the region is impervious to change. Chaney does not point to immutable factors such as culture or religion as the causes of the problem. History — and the habits it engendered — are democracy's biggest foes in the Arab world. If political structures and institutional design and its legacies are to blame, then as these change, things should improve. It is a prescription for the very long term, but at least it is a prescription.


Read more: http://www.time.com/time/magazine/article/0,9171,2111248,00.html#ixzz1rEJChfW7

Tuesday, April 3, 2012

Americans May Be Much Fatter Than We Think, Study Says


Getty Images
GETTY IMAGES
It’s no secret that as a population, Americans been getting heavier, but researchers now say that our weight problem may be worse than we thought.
In a study published in the journal PLoS One, lead author Dr. Eric Braverman, president of the nonprofit Path Foundation in New York City, which supports brain research, says that our current measure of obesity — body mass index, or BMI — significantly underestimates the number of people, especially women, who are obese.
Braverman and his co-author, Dr. Nirav Shah, New York State’s Commissioner of Health, studied 1,400 men and women, comparing their BMI measurement to their percentage of body fat, as measured by a dual-energy X-ray absorptiometry (DEXA) scan. While BMI is a simple ratio of a person’s height and weight, the DEXA scan — which is normally used to measure bone density — can distinguish between bone, fat and muscle mass.
Among the study participants, about half of women who were not classified as obese according to their BMI actually were obese when their body fat percentage was taken into account. Among the men, in contrast, about a quarter of obese men had been missed by BMI. Further, a quarter who were categorized as obese by BMI were not considered obese based on their body fat percentage. Overall, about 39% of participants who were classified as overweight by their BMI were actually obese, according to their percent body fat.
BMI is possibly more misleading for women than for men, Braverman and Shah say, since women lose muscle and bone, and replace it with fat, faster than men. BMI measurements don’t take into account precisely how weight is distributed in the body, and, as Braverman explained to HealthDay, “it’s the percent of body fat, not BMI, that makes you obese.”
Based on BMI, about one-third of Americans are considered obese, but when other methods of measuring obesity are used, that number may be closer to 60%, according to Braverman.
Physicians have complained for years that BMI is an imperfect measure of healthy weight. Extremely muscular people, for example, may weigh “too much” for their height, since dense muscle mass weighs more than fat, thus qualifying as obese even if their bodies contain very little fat. Yet it’s not extra weight itself, but excess fat, that leads to health problems ranging from hypertension and heart disease to diabetes and stroke.
“People aren’t being diagnosed [as obese], so they’re not being told about their risk of disease or being given instruction on how to improve their health,” Braverman told Health.com. Data show that people who start to put on pounds are more likely to continue getting heavier, increasing their risk for a number of chronic diseases.
So why is BMI still being used, if it’s not precise? For now, it’s the best and easiest way for clinicians to gauge a person’s healthy weight while taking into account his or her general body structure. (DEXA scans are far too expensive to be used as a routine measure during doctor’s visits.) BMI isn’t perfect, but many experts say it’s the best we have.
Still, as results like Braverman’s continue to build up, it may be time to consider other ways of tracking weight, and in particular, body fat. “It’s important to point out the weakness of the BMI,” Dr. Richard Bergman, director of Cedars Sinai’s Obesity and Diabetes Research Institute in Los Angeles, told the Los AngelesTimes. “It’s a poor measure of fatness, and we do need better measures.”
In recent years, some experts have looked at using waist circumference as a measure of weight gain and body fat composition, and some studies show it may be more accurate than BMI. But those investigations are still ongoing, and BMI has the advantage of being used since the 19th century, with more than a hundred years of studies and data supporting its general usefulness in determining who is overweight or obese.
Alice Park is a writer at TIME. Find her on Twitter at @aliceparkny. You can also continue the discussion on TIME’s Facebook page and on Twitter at @TIME.
Related Topics: BMIbody mass indexObesityoverweightwaist circumferenceDiabetesHeart DiseaseMedicineObesityPreventionPublic Health


Read more: http://healthland.time.com/2012/04/03/americans-may-be-much-fatter-than-we-think-study-says/?iid=hl-main-lede%3Fxid%3Drss-topstories&utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+time%2Ftopstories+%28TIME%3A+Top+Stories%29&utm_content=Google+Feedfetcher#ixzz1r2AjOgU9