Ejection fraction (EF) measures how well the heart pumps blood. A normal ejection fraction is between 55% to 70%. A low ejection fraction can be a sign of heart failure. Ejection fraction (EF) ...

The heart is the body's hardest-working muscle. Whether you're awake or asleep, or exercising or resting, your heart is always at work. It pumps blood through arteries to deliver oxygen to organs and ...

Blood pressure is one of the most important signs of overall health. It measures the force of blood pushing against the walls of the arteries as the heart pumps blood through the body. Healthy blood ...

High blood pressure is one of the most common health problems in the world. Doctors also call it hypertension. It happens ...