谁能给个关于肥胖的作文开头英语的 引入下文关的的那种

谁能给个关于肥胖的作文开头英语的 引入下文关的的那种
引入下文的那种 写的证明肥胖是疾病的论文 材料作文 我的官邸是肥胖是一种病 0需要一个英语开头 .

The Cause of Obesity Obesity is a medical condition in which excess body fat has accumulated to the extent.Body mass index (BMI),a measurement which compares weight and height,defines people as overweight (pre-obese) if their BMI is greater than 30 kg/m2 (Wikipedia,2011).Nowadays,obesity has become a serious problem in the world.Demonstrated according to the investigation that there is about 60 percent of the populace in the USA is too fat and Germany obese people are more than half of the country population.Some people become obesity,because they inherit their parents’ obese gene.The UK researchers have discovered a commonly occurring gene variant that may explain why some people become overweight while others do not.(Paddock,2012).Also,European and American are easier to get obese gene.So we can easily find a people who are overweight in American street and UK Street.People cannot change their obese gene.They can only keep a balanced diet and avoid eating too many high-fat,high-carbohydrate foods,such as chocolates,fried foods and carbonated drinks.Moreover,more and more people lack of exercise is another reason to cause obesity.Because of the popularity of the Internet,teenagers began to indulge in the Internet.They just want to play computer games,online shopping and chat on Facebook、Twitter… So,they spend less time in playing sport and unlike previous youth to do various sport.They lack of exercise,lack of active and lack a best way to keep fit.Besides,fast food is the best important reason to cause obesity.Fast foods contain a large number of calories and unhealthful ingredients.Also,fast foods are composed of high-fat,high-carbohydrate foods.Many teenagers just want to eat fast foods which are deep-fried.It is contributing to obesity.The study suggests that zoning laws restricting fast food outlets within a set distance of schools could combat childhood obesity in America.(Health State,2007).In addition,eating too many fast foods can cause Hypertension,High cholesterol and malnutrition.A healthy diet not only can let us have a good figure,but also let us have a good health.Obesity is an excess proportion of total body fat.We could this boils down eating too much rubbishy fast food and exercising too little in behavior,meanwhile,it can cause by an unmodifiablereality,our gene.Obesity is not just a cosmetic consideration.It is a chronic medical disease that can lead to diabetes,high blood pressure,heart disease and other chronic illnesses.Obesity is difficult to treat and has a high relapse rate so that should prevent our weight to become too high ahead of schedule.