3. The Framingham Study and the Shift in Thinking
In 1948, the Framingham Heart Study began tracking thousands of participants to understand heart disease. It quickly showed that elevated blood pressure significantly increases the risk of cardiovascular disease—even in people without symptoms.
This study was pivotal in establishing high blood pressure as a major health risk.
4. Pivotal Clinical Trials Support Aggressive Treatment
In the 1960s, a landmark U.S. Veterans Administration trial compared treated vs. untreated patients with severe hypertension. Those receiving treatment had far fewer heart attacks and complications.
This and subsequent trials confirmed that lowering blood pressure saves lives.
5. Steadily Lowering Thresholds: Science or Sales Tactic?
Over time, recommended thresholds dropped—from 180 to 160, then to 140. Why? Because research consistently showed that risk increases steadily with rising blood pressure—even within previously “normal” ranges.
A major 2003 Lancet analysis involving one million adults confirmed this: the lower your blood pressure (within safe limits), the lower your risk.
