Was 2013 the year of Pharrell Williams? With chart toppers such as Blurred Lines and Get Lucky, this writing and producing veteran has suddenly become a rising star.
1 Take the Exercise and Fitness Quiz!  AMS (acute mountain sickness): Acute mountain sickness (AMS) is the effect on the body of being in a high altitude environment. AMS is common at high altitudes, that is above 8,000 feet (2,440 meters). Three-quarters of people have mild symptoms of AMS over 10,000 feet (3,048 meters).
The American Medical Association (AMA) is a medical research and advocacy organization devoted to a mission of improving the delivery and outcome of patient care. The American Medical Association (AMA) is a medical research and advocacy organization devoted to a mission of improving the delivery and outcome of patient care.