If you are looking for the best of the best in brand name nutrition products at an incredibly low price, you have found it. The force of blood pushing against blood vessel walls. The heart pumps blood into the arteries (blood vessels), which carry the blood throughout the body. It is very important to check your Blood Pressure on a regular basis. High blood pressure, also called hypertension, is dangerous because it makes the heart work harder to pump blood to the body and it contributes to hardening of the arteries or atherosclerosis and the development of heart failure.