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阅读理解之说明文Obesity(肥胖症)isbecomingaproblemin ourbusysocietyandalmost one in three American adultsisnow considered to be obese. Children obesity is also atan all-time high.Obesity means being very overweight. If you areobese you have too much body fat. If you eat morefood than your body can use this will make you put onweight. Food that your body does not need will bestored储存as fat by your body.The following are the major factors因素thatincrease the risk of obesity.What you eat plays a major role in weight gain.Eating a lot of fast food such as hamburgers sweetdrinks ice creams and other sweet food can increase therisk of becoming obese. If you do not do enough exercise you will puton weight as the food you eat is not being used to makeenergy for physical activities.The chances of you being obese are greater ifyour parents are obese.There are many psychological(心理的 factorsthat cause people to eat too much. People who areworried...。