Sunday, February 10, 2013

Facts about obesity!

     According to Webmed, "Obesity is an excess proportion of total body fat. A person is considered obese when his or her weight is 20% or more above normal weight. The most common measure of obesity is the body mass index or BMI. A person is considered overweight if his or her BMI is between 25 and 29.9; a person is considered obese if his or her BMI is over 30."

     With obesity becoming a global WHO in May 2012 announced, "Obesity has reached epidemic proportions globally, with at least 2.8 million people dying each year as a result of being overweight or obese. Once associated with high-income countries, obesity is now also prevalent in low- and middle-income countries."

Facts about Obesity 1

Consuming too many calories.

     People are eating much more than they used to. This used to be the case just in developed nations - however, the trend has spread worldwide. Despite billions of dollars being spent on public awareness campaigns that attempt to encourage people to eat healthily, the majority of us continue to overeat. In 1980 14% of the adult population of the USA was obese; by 2000 the figure reached 31% (The Obesity Society).



Facts about Obesity 2

Leading a sedentary lifestyle.

     With the arrival of televisions, computers, video games, remote controls, washing machines, dish washers and other modern convenience devices, majority of people are leading a much more sedentary lifestyle compared to their parents and grandparents. People moved from using their feet to driving their cars to get their provisions. In some countries, dependence on the car has become so strong that many people will drive even if their destination is only half-a-mile away.



     The less you move around the fewer calories you burn. However, this is not only a question of calories. Physical activity has an effect on how your hormones work, and hormones have an effect on how your body deals with food. Several studies have shown that physical activity has a beneficial effect on your insulin levels - keeping them stable. Unstable insulin levels are closely associated with weight gain.

Facts about Obesity 3

Not sleeping enough.

     If you do not sleep enough your risk of becoming obese doubles, According to a research, "the 'epidemic' of obesity is paralleled by a 'silent epidemic' of reduced sleep duration with short sleep duration linked to increased risk of obesity both in adults and in children. These trends are detectable in adults as well as in children as young as 5 years."


     Sleep deprivation may lead to obesity through increased appetite as a result of hormonal changes. If you do not sleep enough you produce Ghrelin, a hormone that stimulates appetite. Lack of sleep also results in your body producing less Leptin, a hormone that suppresses appetite.

Facts about Obesity 4

Lower rates of smoking (smoking suppresses appetite)

     According to the National Institutes of Health (NIH) "Not everyone gains weight when they stop smoking. Among people who do, the average weight gain is between 6 and 8 pounds. Roughly 10 percent of people who stop smoking gain a large amount of weight - 30 pounds or more."


Facts about Obesity 5

Medications that make patients put on weight

     Some medications cause weight gain. "Clinically significant weight gain is associated with some commonly prescribed medicines. There is wide interindividual variation in response and variation of the degree of weight gain within drug classes. Where possible, alternative therapy should be selected, especially for individuals predisposed to overweight and obesity."



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