Every time your heart beats, it pumps out a wave of blood. As the wave of blood travels through your body, it pushes against the walls of your arteries (the blood vessels that carry oxygen and nutrient-rich blood from your heart to the rest of your body). This creates the force known as blood pressure.
Blood pressure may vary throughout the day and change from day to day. It is generally lowest when you are resting, and may change with your activity, posture, and emotions. These temporary changes are completely normal if your blood pressure is within the healthy range.
More than 40% of people with high blood pressure aren’t aware they have it. Although the likelihood of high blood pressure increases with age (it is rare in children and becomes more common in middle age), it can occur at any age. About half of Canadians over the age of 65 have high blood pressure.
Almost half of people with high blood pressure aren’t aware they have it. High blood pressure is often referred to as the “silent killer” because there are usually no symptoms. High blood pressure can double or even triple your risk of heart disease, stroke and increase your risk of kidney disease.
Click here to read more about Getting your Blood Pressure Under Control (Heart and Stroke Foundation)