Hypertensive rats are an animal model used in research to study hypertension, a condition characterized by high blood pressure. These rats are genetically predisposed to develop high blood pressure, making them a valuable tool for studying the mechanisms underlying hypertension and testing potential treatments. Researchers use hypertensive rats to investigate the genetic, environmental, and physiological factors that contribute to high blood pressure, as well as its potential effects on various organs and systems in the body. By studying hypertensive rats, scientists aim to better understand the pathophysiology of hypertension and develop more effective therapies for this common cardiovascular disease.