What Is Normal Blood Pressure? (Cont.)

What Is Normal Blood Pressure? -- Factors Affecting Blood Pressure

It is normal for blood pressure to change frequently throughout the day. Several things can change a person's blood pressure within a few minutes, such as:
 
  • Posture
  • Tension
  • Level of exercise
  • Nicotine use.
 
It's easy to see why even normal blood pressure can fluctuate within a certain range every day. Given these normal blood pressure fluctuations, it's best to use more than one reading to figure out your normal blood pressure.
 
Remember, blood pressure can run high or low in families; what is considered normal blood pressure may differ from person to person. It's important to look at your overall health, lifestyle, diet, and family history when comparing your blood pressure to what is thought of as "normal" blood pressure. These factors may cause you to have a higher or lower blood pressure than what's considered normal.
 
(Click Blood Pressure Numbers for more information about normal blood pressure readings.)
 

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Written by/reviewed by: Arthur Schoenstadt, MD
Last reviewed by: Arthur Schoenstadt, MD