Although chemical exposure can lead to psychological problems, many doctors believe that the reverse is also true — psychological problems can contribute to the development of chemical sensitivities.
Meskipun kontak dengan zat kimia dapat mengakibatkan problem psikologis, banyak dokter yakin bahwa demikian pula sebaliknya ​ — problem psikologis dapat turut mengembangkan sensitivitas terhadap zat kimia.