NSCF Certified Personal Trainer Practice Exam

Prolonged stress significantly impacts heart health primarily through the mechanism of increased heart rate. When an individual experiences stress, the body triggers a "fight or flight" response, leading to the release of stress hormones such as adrenaline and cortisol. These hormones prepare the body for immediate physical action, resulting in a faster heart rate to pump more blood to vital organs and muscles. Over time, persistent elevation in heart rate can contribute to various cardiovascular issues, including hypertension (high blood pressure) and increased risk of heart disease.

Higher heart rates sustained over long periods can lead to an increased workload on the heart and may also cause it to become less efficient. In contrast, decreased blood pressure, improved circulation, and enhanced vascular compliance would generally be considered beneficial outcomes for heart health, rather than consequences of stress. Thus, recognizing the direct relationship between prolonged stress and the increase in heart rate highlights the importance of stress management for maintaining cardiovascular health.