在美国几所大的妇婴医院,科学家做了这样的实验:把每家医院新出生的身世不同的婴儿分成两组,第一组取名为有爱抚组,第二组取名为无爱抚组。每天对第一组的新生婴儿都抱起来 In several large maternal and infant hospitals in the United States, scientists conducted experiments in which newborn babies of different births in each hospital were divided into two groups. The first group was named caressing group, the second group was named careless group. The first group of newborn babies are picked up daily