Researchers Sort Out the Relation between Heart Attack and Stress – Techsonia

Stress and heart attack link has been sort out by researchers. Massachusetts General Hospital and Harvard Medical School researchers conducted a study in which they showed disease-promoting white blood cells increased with the level of stress.

In the journal Nature Medicine, the study was published. In Germany’s University Hospital in Freiburg, 29 blood samples of the residence workers in Intensive Care Unit were analyzed. Samples were taken by putting residents in on-duty and off-duty situations. In on duty situations they were taking life and death decisions which was stressful and in off duty they were given un-stressful works so differences can be compared.

On duty samples showed higher level of white blood cells production and off duty showed minor cells production.

 The experiment was then confirmed by producing similar conditions in mice.

“High levels of white blood cells may lead to progression of atherosclerosis, plaque rupture and myocardial infarction,” Dr. Matthias Nahrendorf, a co-author of the study, said.

“The latter implies that a part of the heart muscle, which pumps the blood with every beat, dies off. This may cause heart failure, either right away if the infarct is large, or later on through maladaptive processes. The heart tries to compensate for the loss of contractile muscle tissue but over time this compensation leads to a larger heart, which is weaker.”

White blood cells fight the diseases in body but excess amount of cells opposite their function.

“I think it is fair to say that stress by itself is not very dangerous,” Nahrendorf said. “However, in conjunction with other risk factors such as high blood cholesterol, obesity, and smoking it can probably add substantially to the overall risk for a heart attack.”

Researchers Sort Out the Relation between Heart Attack and Stress – Techsonia

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