It can lead to stroke, heart attack or kidney failure.
Blood pressure results from the force of blood pushing against blood vessel walls.
Two numbers represent blood pressure. The systolic number is always listed first and the diastolic number is second. A blood pressure of less than 140 over 90 is considered normal blood pressure for adults. A blood pressure reading equal to or higher than 140 over 90 is considered elevated of high. How to control high blood pressure Even if you have had a prior stroke or heart attack, controlling high blood pressure can help prevent another one.