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.
A low blood pressure reading is having a level that is 90/60mmHg, or lower. Only one of the numbers has to be lower than it should be to count as low blood pressure. In other words: if the top number is 90 or less (regardless of the botton number) this may be low blood pressure.