Hypotension; Low blood pressure (hypotension) 


Within limits, the lower your blood pressure reading is, the better. In most people blood pressure isn't too low until it causes symptoms such as lightheadedness or fainting.

Orthostatic hypotension (also known as postural hypotension and, colloquially, as head rush) is a sudden fall in blood pressure that occurs when a person assumes a standing position. Symptoms, which generally occur after sudden standing, include dizziness, lightheadedness, blurred vision, and syncope (temporary loss of consciousness).

Low Blood Pressure as related to Orthostatic Hypotension