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.
Hypotension is generally considered if systolic blood pressure less than 90 millimeters of mercury (mm Hg) or diastolic less than 60 mm Hg. However, in practice, blood pressure is considered too low only if noticeable symptoms are present. Hypotension is the opposite of hypertension, which is high blood pressure.