Unit 97：Aerobicize
第97单元：有氧运动好处多
Aerobic exercises-aerobic dance classes,brisk walking,running,bike riding,
有氧舞蹈课、快步、跑步、骑脚踏车、
swimming and similar activities requiring steady,intense effort-are super fat busters.
游泳以及其他类似活动，需要持续与密集努力的有氧运动，都是最棒的肥胖终结者。
The American College of Sports Medicine says that significant loss of body fat requires a program of exercising at least 20 minutes per day,three days a week,
美国运动医学院指出，要明显清除身体脂肪必须拟定一个运动计划，这个计划每星期至少运动三天，每次至少运动二十分钟，
with sufficient intensity and duration to burn 300 calories per session.Aerobic activities fit this bill the best.
运动须够激烈，时间须够长及持久才能燃烧掉三百卡路里。而有氧运动最能达到这需求。
Aerobics also help you relax.
有氧运动还可以帮你放松身心。
And since sterss is a common cause of overeating,relieving it is a step in the right direction.
因为压力也是暴饮暴食的一个常见的原因，所以减轻压力是减肥正确的一步。