迄今为止,人们已经发现众多的环境因素与癌症的发病有关。与此同时,科学家们的研究还表明,心理因素同样可以成为癌症的诱因。五十年代中期,美国著名心理学家劳伦斯·莱西曾对一组癌症患者的生活史做过调查,他发现这些患者的一个共同特点是,从童年时开始便留下不同程度的心理创? So far, it has been found that a large number of environmental factors associated with the incidence of cancer. At the same time, scientists’ research also shows that psychological factors can also become a cancer inducing factor. In the mid-1950s, Lawrence Lacey, a famous American psychologist who conducted a survey on the life history of a group of cancer patients, found that one common feature of these patients was that they left varying degrees of psychological trauma from their childhood.