Credit: Circulation: Cardiovascular Imaging (2024). DOI: 10.1161/CIRCIMAGING.124.016596 Imagine walking through a park and suddenly spotting a bear. Normally your heart starts beating faster and your blood vessels constrict. That’s the sympathetic nervous system preparing your body for a “flight or fight” response. Then, once you reach safety, your parasympathetic nervous system helps calm you down. Eventually, your blood pressure and heart rate return to normal. For some people with heart disease, however, this experience can be concerning because stressful events can further negatively impact the heart. In 2021, NIH-supported researchers Read More