Millions of people may be getting misdiagnosed with hypertension because of the way their arms are positioned during a blood pressure check. A new study suggests that common arm positions, such as resting your arm on your lap or letting it hang at your side,

A new study from Johns Hopkins reveals that improper arm position during blood pressure checks can lead to inaccurate readings.

Some arm positions during blood pressure checks may lead to inaccurate readings, new study finds. Experts explain the findings.