Altering lifestyles over the last century, including bigger calorie consumption and abridged physical activity, have played a key role in the prevalence of obesity seen today. In the United States and other developed nations, the availability of wider food options has contributed to a change in eating habits. Grocery stores stock their shelves with a greater selection of products. Prepackaged foods, soft drinks, and fast-food restaurants have become more accessible. While such food choices offer convenience, they also tend to be high in fat, sugar, and calories. Portion size has also increased. People eat more during a meal or snack because of larger portion sizes. Surveys indicate that people eat at restaurants more frequently than in the 1970s, and restaurants typically serve larger portions of food than those served at home. In the United States, experts believe that high-calorie food choices and larger portions have become the basis of the typical diet, resulting in excessive calorie intake and increasing the prevalence of obesity. (Deusinger, Robert H (2003)
Mutually adults and children spend less time devoted to work out as a result of longer work hours at sedentary jobs, a decline in physical education programs in schools, and increased participation in sedentary recreational activities such as browsing the Internet, playing video games, and watching television. In addition, many of the laborsaving devices of the modern lifestyle, such as cars, elevators, personal computers, and remote controls, promote a sedentary lifestyle. According to some studies, more than 26 percent of adults reported no leisure-time physical activity. This lack of physical activity has reduced the overall amount of energy expended in the course of a day, contributing to the development of obesity.
The United States has affluent and prolific land that has provided Americans with bountiful resources for a vigorous diet. Despite this, Americans did not begin to pay close attention to the variety and quality of the food they ate until the 20th century, when they became concerned about eating too much and becoming overweight.........
