This pioneer had a fascination with the micro-world from a young age. Inspired by her father’s passion for science, she followed in his footsteps and became the first black American woman to earn a Ph.D. in chemistry. Her work advanced the medical community’s understanding of the human heart, uncovering the effects of cholesterol on the mechanics of the heart as well as the effects of sugars and other nutrients on the health of arteries. Share now to show the world what a scientist really looks like!