Looking at brain scans of 293 people, stress seemingly triggers the amygdala – an area in the brain – to signal to the bone marrow to produce extra white blood cells.
This, in turn, causes the arteries to become inflamed, and inflammation is linked to angina (chest pain), strokes, and heart attacks.
People who rated themselves as more stressed were also more likely to have higher levels of activity in the amygdala.
Emily Reeve, Senior Cardiac Nurse at the British Heart Foundation, commented on the study.
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