Short answers, pulled from the story.
Hypertension is a long-term medical condition in which blood pressure in the arteries remains persistently elevated. It serves as a major risk factor for stroke, coronary artery disease, heart failure, and chronic kidney disease.
In 2024, one in three or 33 percent of the world population were estimated to have hypertension. Hypertension rates are highest in Africa at 30 percent for both sexes and lowest in the Americas at 18 percent.
The English clergyman Stephen Hales made the first published measurement of blood pressure in 1733. This event marked an early step before Scipione Riva-Rocci invented the cuff-based sphygmomanometer in 1896.
For most adults, normal blood pressure at rest falls within the range of 100 to 140 millimeters mercury systolic and 60 to 90 mmHg diastolic. High blood pressure is present if resting blood pressure persists at or above 130/80 or 140/90 mmHg.
Resistant hypertension is defined as high blood pressure remaining above target levels despite prescribed three or more drugs simultaneously. Failing to take prescribed medications as directed remains an important cause of these resistant cases.