present in appreciable amounts” in DNA -research which was cited when Watson and Crick accepted the Nobel Prize for the structure of DNA. She did some of the earliest work on the relationship between diet & cardiovascular health. She was the first to show how cholesterol could clog arteries & that hypertension lead to atherosclerosis; these were invaluable discoveries in our understanding of heart attacks & work to lower the risk. She also did early work linking smoking & hypertension. 🧵2/