In a study at the Ohio State University in the United States involving 34 young, healthy, disease-free women, a link was found between infection related to the body's response to shocks and the number of disorders.
The researchers found that those who were asked to think about an incident had a protein rate that was an indicator of tissue infection, a C-reactive protein.
Engaging a person in a negative way about his life or some of his memories can harm his health and increase the level of infection in the body.