Animal Cruelty, Obliterating Arteries, and Insurance Actuaries: How Medicine Recognized the Dangers of Hypertension
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Animal Cruelty, Obliterating Arteries, and Insurance Actuaries: How Medicine Recognized the Dangers of Hypertension
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We trace the origins of how medicine first understood and measured blood pressure. From early fluid-pressure experiments and invasive animal studies to the invention of the modern blood-pressure cuff, we follow the slow realization that chronically elevated blood pressure is dangerous. We also explore the long-standing debate surrounding "essential hypertension" and how research—from Janeway's observations to insurance-company data and the Framingham Study—ultimately shifted medical practice toward active treatment.
Chapters- (00:00:00) - Intro: History of Blood Pressure
- (00:01:35) - What is Blood Pressure
- (00:03:53) - Normal vs High Blood Pressure
- (00:04:48) - Histories View of Hypertension
- (00:07:35) - The Origin of Blood Pressure Measurement
- (00:09:12) - Stephen Hales & Animal Experiments
- (00:12:44) - Measurement Devices
- (00:15:55) - Early Clues of Danger: Kidneys, Hearts
- (00:19:25) - What Famous Clinicians Believed
- (00:24:31) - Hypertensions Dangers Emerge
- (00:25:27) - Insurance Actuaries Enter the Scene
- (00:27:20) - The Framingham Heart Study
- (00:27:52) - Closing
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