1. Failure to keep the cuff level with your heart. A cuff is a vital tool for measuring blood pressure. Many people, however, are unaware of the significance of having it at the same level as your heart. Raising your arms or hanging them by your sides increases your blood pressure by 10 points.

2. Not urinating before taking a blood pressure reading. One of the most common errors people make is this. Keeping your bladder full will result in a 15-point increase in your blood pressure reading. Relax completely before taking your blood pressure.

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