Low blood pressure, or hypotension, occurs when one of the two blood pressure numbers are below normal; that reading is considered hypotensive. Athletes and people who exercise regularly often have blood pressure readings that are lower than the average. Ringing in the ear and pressure are not typical symptoms of low blood pressure.
Blood Pressure Readings
The first number of a blood pressure reading is the systolic pressure, which measures the pressure on a blood vessel when the heart pumps blood. The diastolic reading is the second number and measures the amount of pressure after a heartbeat.
Normal Blood Pressure
Blood pressure readings are considered normal when the numbers are between 115/75 and 120/80.
Low Blood Pressure
When a person has a systolic reading of 110 or lower and a diastolic reading of 70 or below, he has low blood pressure.
The symptoms of low blood pressure include fainting, dizziness, blurred vision, nausea, shallow breathing and thirst.
Age, poor diet and pregnancy can cause low blood pressure. Infection, injury, alcohol abuse, narcotics, diuretics, beta/alpha blockers and anti-depressants can also cause hypotension.
Depending on the cause, treatment of hypotension may consist of salt, prescription medications, compression stockings or drinking water. Only a physician can decide proper treatment.
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