Ask the doctor: Is low blood pressure a problem?
Ask the doctor
Low blood pressure is a serious problem when the pressure suddenly drops from normal to low, as happens with dehydration, blood loss, or shock. Chronically low blood pressure is worrisome when it is accompanied by symptoms such as dizziness or fainting. This can be a sign of an underactive or overactive thyroid gland, poorly functioning adrenal glands, anemia, mild dehydration, a low heart rate, and other conditions. It can also be caused by medications, especially those used to lower blood pressure.
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