<span>When an individual is more than a couple of meters underwater, the air pressure in the lungs is greater than the air pressure at the waters surface. If a snorkel were used, it would move the air from the lungs to the surface, making it very difficult to breath
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Answer:
When you run over a speed bump but it screams-
Allows for greater intake of higher calorie foods
Builds muscle and increase metabolism
Helps minimize fat and maintain ideal body weight
Improve sport and game performance
Enhance the immune system (fight diseases/ stay healthy)
Late 18th century Edit
On July 16, 1798, President John Adams signed the first Federal public health law, "An act for the relief of sick and disabled Seamen." This assessed every seaman at American ports 20 cents a month. This was the first prepaid medical care plan in the United States. The monies were used for the care of sick seamen and the building of seamen's hospitals. This act created the Marine Hospital Service under the Department of the Treasury. In 1802 Marine Hospitals were operating in Boston; Newport; Norfolk; and Charleston, S.C. and medical services were contracted in other ports
