What Is Blood Pressure?

Blood Pressure

Say: blud PREH-shur

When you go to the doctor, a nurse might put a band around part of your arm and pump air into the band, blowing it up like a balloon. Your arm might feel a little squished, but don't worry — that's how they check your blood pressure. This test shows how hard your heart is pumping to move blood through your body. Blood pressure can be too high or too low, but yours is probably just right!