Clear science for curious people

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Clear science for curious people

Latest

How a Massachusetts town study rewrote the rules on blood pressure

In 1911 a life insurance doctor was already sorting blood pressure readings by age. Decades later many physicians still treated 100 plus your age as acceptable, until the Framingham Heart Study showed high pressure was not benign. The line has kept falling since.

By Justin Brown · Oct 9, 2026

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Clear science for curious people

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