The psychiatry journal of the American Medical Association (JAMA Psychiatry) recently published the results of a study that revealed that people who are at high risk of depression and believe that religion or spirituality is important are less likely to suffer from depression. The results of the study showed that the cerebral cortex of each of the brains of the people who were less likely to suffer from depression was thicker. The cerebral cortex is the outermost layer of the brain.