Sedentary jobs, helping the obesity epidemic Drive

 as Americans sit - literally - in more sedentary jobs, they're packing on the pounds, and it is this inertia which is a major contributor to the obesity epidemic, new research suggests.

Look at the computer for hours rather than hoeing the fields means that us are 120 to 140 burning less calories per day than they were 50 years ago.

Therefore promote any type of physical activity should be more important in this war the weight, according to a study in the Edition online may 25 in the journal PLoS ONE.

"It is calories in and calories out, and we're more calories in that we take, said Dr. Robert Graham, a primary care physician at Lenox Hill Hospital in New York."

Led an inclination towards calories in two-thirds of American adults are now overweight or obese.

Although dietary habits and exercise have been studied to the obesity epidemic, these researchers, from Biomedical Research Centre Pennington in Baton Rouge, Louisiana), stated that a large part of the responsibility for the extra weight was put on the caloric intake.

This is because the amount of recreational physical activity has not really changed over the years.

But what physical requirements of work, where so many people spend most of their days?

These researchers cross-referenced U.S. Bureau of Labor Statistics on the prevalence of different jobs with a large national database which includes information on body weight.

Fifty years ago, about half of private-industry jobs involved United States a kind of physical activity, things such as agriculture, mining, construction and manufacturing. Today, this number is less than 20%, with the dominance of jobs in the retail, education and business sale.

The authors estimate that less than 100 calories out each day would lead to weight gain in what the U.S. population has seen since the 1960s.

However, if Americans were following federal guidelines for physical activity (150 minutes per week of moderate intensity exercise or 75 minutes of more vigorous activity), these additional calories would have been levelled.

Only one in four Americans made the recommended exercise level, the authors reported.

"We need to encourage physical activity most, particularly given that us sit more during the day that we has 100 years," says Keri Gans, a spokesman for the American Dietetic Association and the author of the diet of Small Change.

"The requirements of daily life are in competition with exercise," said Graham. "We have just in time for it to do."

Gans recommends that people move to work even if they have what amounts to an employment office. That could take the stairs when you can walk on the counter of a co-travailleur when you can and taking a walk at lunch. And if your company happens to have a gym or exercise program, by all means, you will participate.

Crowded Mozambique classes children drive at night school

Lights in the single-story classroom throw yellow pools on the sandy playground, while in a corner a few group around a popcorn machine. Although most of the 62 students left class when the teacher has not been, Joana is optimistic.

"Patience brings victory," said 31-year-old mother stoically.

"Perhaps when you leave the teacher comes and then you miss the lesson," she tells AFP.

His challenge is a routine for students in one of the poorest countries of the world, which is struggling to educate his youth but also adults failed next to tuition during decades of war.

Classes have an average of 66 students per teacher and managed schools in three teams of 7: 00 to 10: 00 to deal with numbers.

After starting a family, Joana returned to school with classmates of half his age to improve its chances of finding a good job. Even basic education would reserved in the Southern African country where adults have an average of 1.2 years of schooling, according to the Organization of the United Nations.

Finally, the ninth grade student takes the homeland of the Escola Primaria do Triunfo road in Maputo. It is difficult not knowing if the teacher will come or not, she said.

"We had two lessons (in the last half)." In the tenth year we? ll have problems. ?

The mathematics class has already been cancelled because no teacher is available, so the school closes earlier than the usual 10: 00 pm.

Approximately 81% of Mozambique's children go to primary school, although the numbers of decreased offshore as aging, but there is no space or teachers to manage all, especially when returning adult students are added in.

School of night began under the Portuguese colonizers, but Mozambique retained the system after independence in 1975 to deal with the overflow of the student.

This means that the Aida Bila, 16, a sometimes walk the five kilometres (three miles) home in the dark if public transport stopped or his family can afford the fare.

Help although aspiring lawyer is concerned about the missed lessons, teachers them during exams, she said.

"They don?". "t always provide answers, but sometimes they y.".

Even when teachers are present, many students come to school to socialize, said educator Carlos Francisco.

"The system created the conditions that they lose interest," said. "In the lower classes, they are automatically transmitted, then they come here and cannot read or write."

Francisco teaches design, but without no instrument to direct its course. 29-Year-old father is working 14 hours a day to three schools in support of his family, but some educators have even worse hours, he said.

"The Government tries to improve, only the country that has so many challenges." Admittedly, this is bad. ?

Mozambique has budget 22.8 billion meticals (730 million dollars, EUR 493 million) for education this year, approximately 18% of the national budget.

International donors contribute to at least 85 million dollars (57 million euros) of the education budget, but it should reduce donations due to the global economic crisis.

In addition the authorities cut parts of the budget to channel money subsidies after the death of 14 in the riots in September although education as a whole received more money this year.

"It affected the functioning of the Ministry," according to the Ministry of education, planning director Manuel Rego.

Do with the riots last year, it is time to do a good job"with the budget, he said.

The authorities are more schools and training teachers despite the setbacks, Rego adds.

"Even if it is difficult to see, much improved conditions."

One encouraging point is the enrolment of girls, with almost a girl by boy in primary schools.

All the same, education improve not for students of 6.9 million of the country soon, with a target of the Millennium development goal 2015 of 55 students per teacher little likely, recognizes the Rego.

"We won". t be able to extend the network of schools in the coming years. ?