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).
Medicine & Science in Sports & ExerciseÂ®. Stay in the know with ACSMâs cutting-edge research. Medicine & Science in Sports & Exercise (MSSE), ACSM's flagship monthly journal, is the leading multidisciplinary original research journal for members. Each issue features original investigations, clinical studies and comprehensive reviews on current topics in sports medicine and exercise science.