The obesity rate in America is extraordinarily high. As of 2009, nine of the 50 states had obesity rates at or above 30 percent. According to the Centers for Disease Control and Prevention, obesity-related illnesses, particularly heart disease, rack up the highest fatalities in America each year. Many factors can contribute to obesity in America, with some leading causes sedentary lifestyle, poor diet, genetics and underlying medical conditions.
Sedentary Lifestyle
Many Americans lead sedentary lifestyles, meaning their daily lives lack adequate physical activity to maintain healthy weight. MayoClinic.com says most adults spend most of their day sitting, either at a work desk or at home watching TV. Even incorporating 30 minutes of moderate exercise, such as walking, into the day would raise the resting metabolism of many Americans and help reduce the effects of obesity.
Unhealthy Diet
Poor diet is one of the leading factors in America's obesity. Fast food restaurants are located virtually everywhere in the United States, and most fast food restaurants sell foods that are high in calories, fat and refined sugars while being low in vitamins and nutrients. Over-sized portions and eating most of your calories at night also contribute to weight gain.
Genetics
Some people have genetic factors that predispose them toward obesity. In a report titled, "Genetic and Hereditary Aspects of Childhood Obesity," which the Best Practice & Research Clinical Endocrinology & Metabolism journal published in September, 2005, researchers found that genetics factor in to how people respond to diet and exercise. While one person may have a naturally high metabolism, another may have a naturally lower metabolism. However, obesity that runs in families may also be caused by children forming diet and exercise habits that are similar to those of their parents. Proper diet and exercise can help maintain physical fitness for many people who are predisposed to obesity.
Underlying Conditions
Certain medical conditions may present a challenge for people trying to lose weight. Some medical conditions may even cause weight gain. According to MayoClinic.com, medical problems such as polycystic ovarian syndrome and Cushing's syndrome may worsen or even contribute to the development of obesity. In addition, many women add extra weight during pregnancy and struggle to lose it after pregnancy, contributing to overweight or even obesity.
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