The nursing instructor, while teaching the physiology of the heart, informs the students that there are 3 major determinants of
myocardial oxygen demand, which include the heart rate, left ventricular contractility, and systolic pressure. Which does she tell them is the most important factor in myocardial oxygen demand?
This information is a great reminder of how important we are in each other's lives. We all need to make the time to get out and see our friends and family. Especially because face-to-face socialization goes beyond depression, reducing stress and anxiety as well. We all benefit from strong, healthy relationships.
