Psychological effects yielded physical effects

From the latest issue of Psychiatric News:
Younger soldiers who served in the U.S. Civil War and those who saw more of their comrades die were at greater risk for heart, stomach, and nervous illnesses decades after the war, reveals a study of individual and unit records of more than 15,000 veterans. [...] The medical histories and diagnoses were drawn from pension files compiled by government physicians to certify the veterans' health and disability status. Most of the other soldiers not included in the study were dead or deserters, and so lacked postwar medical records.
I wonder if they considered the effects of living outdoors from 1 - 3 years, of not washing enough, of high risk of exposure to disease, of frequent dysentery, of poor diet, and of separation from family without leave for nearly the duration of the war, and of letters from home complaining of financial hardship with no chance of meliorating family circumstances..

(Some of this research appeared in February.)