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.
Doctors generally consider a blood pressure of 120/80 mm Hg or less to be normal and healthy. More attention is usually paid to the systolic pressure, but both numbers are important.Either a systolic pressure above 120 or diastolic pressure above 80 may be cause for concern if readings remain consistently high.lood Pressure Terminology. Blood pressure is reported as a set of two numbers: systolic pressure and diastolic pressure, expressed as âmm Hg, or millimeters of mercury. When the blood pressure is said to be 120 over 80, or 120/80 mm Hg, the first number is the systolic pressure and the second the diastolic.