However the longest escalator on any metro system, which is in fact made up of two escalators one above the other, is situated at the Wheaton Street Station on the Washington D.C Subway in the U.S.A, The two escalators are both seventy meters long, have a vertical rise of thirty meters and take three minutes to ride.
If the blood pressure is too low 80/40 the pressure is usually considered too low to exercise. Exercise dilates the arteries and after exercise the pressure will be lower than entry. If lower than 80/40 most people will feel like they might pass out.Blood pressure is measured during exercise.f the blood pressure is too low 80/40 the pressure is usually considered too low to exercise. Exercise dilates the arteries and after exercise the pressure will be lower than entry. If lower than 80/40 most people will feel like they might pass out. Blood pressure is measured during exercise.
High blood pressure is 140/90 or higher. If your blood pressure is between 120/80 and 140/90, you have something called prehypertension, which means that you are in the beginning stages and at risk for high blood pressure. Only your doctor can tell you whether you have high blood pressure.igh blood pressure is 140/90 or higher. If your blood pressure is between 120/80 and 140/90, you have something called prehypertension, which means that you are in the beginning stages and at risk for high blood pressure. Only your doctor can tell you whether you have high blood pressure.