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.
This pressure depends on the vertical distance of the column of blood from the heart to the foot. Approximately 86 mmHg of pressure is inside the veins of the ankle of a 5'7 adult in the quiet standing position. In the vena cava vein just before it enters the heart, the venous pressure is about 2 mmHg.