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.
The higher the pressure, the harder the heart has to pump. Normal adult blood pressure is defined as a blood pressure of 120 mm Hg1 when the heart beats (systolic) and a blood pressure of 80 mm Hg when the heart relaxes (diastolic).