关于肥胖的原因的英语作文

关于肥胖的原因的英语作文

The World Health Organization (WHO) predicts that overweight and obesity may soon replace more traditional public health concerns such as undernutrition and infectious diseases as the most significant cause of poor health.Obesity is already a public health and policy problem because of its prevalence, costs, and health effects.Obesity is an abnormal accumulation of body fat, usually 20% or more over an individual's ideal body weight. Obesity is associated with increased risk of illness, disability, and death.The causes of obesity continue to be debated and studied. Though it has long been considered the simple result of too little exercise and too much eating,As societies become increasingly reliant on energy-dense, big-portion, fast-food meals, the association between fast-food consumption and obesity becomes more concerning.Consumption of sweetened drinks is believed to be contributing to the rising rates of obesity.Diets to promote weight loss are generally divided into four categories: low-fat, low-carbohydrate, low-calorie, and very low calorie.Very low calorie diets, a new idea in obesity controling, provide 200–800 kcal/day, maintaining protein intake but limiting calories from both fat and carbohydrates. A sedentary lifestyle plays a significant role in obesity.Worldwide there has been a large shift towards less physically demanding work,and currently at least 60% of the world's population gets insufficient exercise.This is primarily due to increasing use of mechanized transportation and a greater prevalence of labor-saving technology in the home.Excessive weight can result in many serious, potentially life-threatening health problems, including hypertension, Type II diabetes mellitus (non-insulin dependent diabetes), increased risk for coronary disease, increased unexplained heart attack, hyperlipidemia, infertility, and a higher prevalence of colon, prostate, endometrial, and, possibly, breast cancer. Approximately 300, 000 deaths a year are attributed to obesity, 如果你只是想知道意思，用翻译软件就可以了，如果你要是想知道每句话的确切意思，再追加为题吧