Hence, every pair of bus stops will have 4 same digit and a 1 or 9 as the last digit to differentiate the direction of the service. Some bus stop numbers end with 'A' or 'Z', which is equivalent to '1' and '9' respectively.
Definition. Low blood pressure (hypotension) would seem to be something to strive for. However, for many people, low blood pressure can cause symptoms of dizziness and fainting.In severe cases, low blood pressure can be life-threatening.efinition. Low blood pressure (hypotension) would seem to be something to strive for. However, for many people, low blood pressure can cause symptoms of dizziness and fainting. In severe cases, low blood pressure can be life-threatening.
Note that blood pressure readings are expressed as millimeters of mercury. This unit is abbreviated as mm Hg. A normal reading would be any blood pressure below 120/80 mm Hg and above 90/60 mm Hg. Blood pressure that is too low does not supply your body and heart with enough oxygenated blood. Low blood pressure is known as hypotension.