Many retirees would love to retire somewhere warmer with a beautiful coast and a reasonable cost of living. Puerto Vallarta, Mexico, is one of the options many retirees may want to consider. There are several challenges to consider such as the difficulties with Medicare in foreign countries and the different income tax situations.
The air pressure inside a human body is roughly equivalent to the pressure of the atmosphere. Normal air pressure is about 13.7 pounds per square inch at sea level.
Concept 4: Blood Pressure. Heart contractions generate blood pressure, the fluid pressure that blood exerts against vessel walls. Blood pressure is expressed in mm Hg. Normal blood pressure in adults is 120 mm Hg/80 mm Hg (systolic/diastolic), when measured at the brachial artery in the arm, the standard point of reference. Blood pressure is highest in arteries and lowest in veins.