High blood pressure, or hypertension, is a common disease that develops when blood flows through your arteries at higher-than-normal pressures. Hypertension is the leading preventable cause of death and disability around the world, and can lead to heart disease, stroke, kidney disease and dementia. Over 7.2 million Canadians have hypertension, and 7.5 million more have high blood pressure that will lead to hypertension without preventative action. Your blood pressure is considered high when you have consistent systolic readings of 130 mm Hg or higher or diastolic readings of 80 mm Hg or higher. Schedule an appointment to see your family doctor if you’re concerned you have hypertension.