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 Cancer Society (ACS) is a nationwide, community-based, voluntary health organization dedicated to eliminating cancer as a major health problem. Together with its supporters, ACS is committed to helping people stay well and get well by finding cures and by fighting back. 1.