随着经济和社会的发展,人们发现,人的身体健康与否并不仅仅取决于饮食起居、讲究卫生、经常锻炼等生理方面的因素,还与人的心理和社会环境有很大关系。例如,国外有两个研究人员做过一个实验。在1948年,他们将45名学生按不同的性格分为三组,第一组的学生性格为谨慎、含蓄、安静和知足;第二组学生的性格为自觉、积极和开朗;第三组学生的性格为情绪易波动,急躁、易怒和不知足。30年后的1978年,他们又对这45人的 With economic and social development, people find that people’s health does not depend only on physiological factors such as diet, hygiene, regular exercise, but also has a great relationship with people’s psychology and social environment. For example, two researchers abroad have done an experiment. In 1948, they divided 45 students into three groups according to different personalities. The students in the first group were cautious, subtle, quiet and content. The second group of students were self-conscious, positive and cheerful. The third group of students The character of the emotional volatility, irritability, irritability and lack of contentment. In 1978, 30 years later, they turned again to these 45 people