Understanding and Managing High Blood Pressure
When your heart pumps blood, the blood pushes against the walls of your blood vessels. This creates blood pressure. You need blood pressure to move blood throughout your body, so every part of your body can get the oxygen it needs.
Healthy arteries (the blood vessels that carry oxygen-rich blood from the heart to the rest of the body) are elastic. They can stretch to allow more blood to push through them. How much they stretch depends on how hard the blood pushes against the artery walls. For your arteries to stay healthy, it’s important that your blood pressure be within a healthy range.