James MacKenzie (physician)

James MacKenzie was a Scottish physician in the late 19th and early 20th centuries, known for his pioneering work in cardiology. He was one of the first to use the stethoscope to listen to heart sounds and to record electrical activity of the heart, contributing significantly to our understanding of heart disease. MacKenzie emphasized the importance of observing patients, their symptoms, and their heart functions, revolutionizing how physicians diagnose and treat cardiac issues. His work laid the groundwork for modern cardiology and improved the overall care of patients with heart conditions.