There were no significant prospective links between stress and objective evidence of heart disease, and, weak prospective links between stress and subjective heart disease. In theory, both the objective and subjective heart diseases observed in this study are caused by the same disease mechanisms. Either they are in fact caused by different mechanisms or, there is no causal relationship between stress and the disease mechanism.
Evidence from:
NR Nielsen et al. Epidemiology (2006) Vol. 17 p 391 – 397
‘Perceived Stress and Risk of Ischemic Heart Disease Causation or Bias?’
Objective measures of heart disease show no relationship with stress. Subjective hert disease was weakly related to stress.
Further detail: