Chronic stress is associated with which cardiovascular outcomes?

• A. Decreased heart rate
• B. Increased HDL cholesterol
• C. Reduced inflammatory markers
• D. Hypertension, progression of atherosclerosis, arrhythmias, and myocardial ischemia

Answer: (D)

Chronic stress pushes the body into a sustained fight-or-flight state, with ongoing sympathetic activation and HPA axis engagement. This drives higher heart rate and blood pressure, promotes vasoconstriction, and releases stress hormones like catecholamines and cortisol. Over time, these effects damage the vessels, contribute to hypertension, and foster a pro-inflammatory and pro-thrombotic environment. The inflammation and endothelial dysfunction accelerate atherosclerosis, while autonomic imbalance and increased myocardial demand raise the risk of arrhythmias and episodes of ischemia. Together, these mechanisms link chronic stress to hypertension, progression of atherosclerosis, arrhythmias, and myocardial ischemia.

Choices suggesting a decrease in heart rate, an increase in HDL cholesterol, or a reduction in inflammatory markers don’t fit with the typical response to chronic stress, which tends to elevate heart rate, often lower HDL or worsen lipid profiles, and elevate inflammatory markers.