人体一些器官是成对的,按照左右方位来命名,如左脑与右脑、左耳与右耳、左脸与右脸等。不过,左右器官的不同绝不只是方位上的差异,实际上还蕴藏着不少生理机密。人们都说,有一个好心情最为重要。可好心情源于何处呢?美国科学家一语道 Some organs of the human body are paired, named according to the left and right directions, such as left and right brain, left and right ear, left face and right face. However, the difference between the right and left organs is not only the difference in position, in fact, contains many physiological secrets. People say that having a good mood is most important. Where are you feeling good? American scientists said