怪医杜立德国语版剧情介绍:
Your heart is just as smart as the U. S.Army.Your heart pumps enough blood through your body every day to fill a railway tank car.It exerts enough energy every twenty-four hours to shovel twenty tons of coal on to a platform three feet high.It does this incredible amount of work for fifty, seventy, or maybe ninety years.How can it stand it？Dr.Walter B.Cannon, of the Harvard Medical School, explains it.He says："Most people have the idea that the heart is working all the time.As a matter of fact, there is a definite rest period after each contraction.When beating at a moderate rate of seventy pulses per minute, the heart is actually working only nine hours out of the twenty-four.In the aggregate its rest periods total a full fifteen hours per day."
相关影视:怪医杜立德国语版
