High summer temperatures can be deadly. Every year many people work or play in high temperatures until sweating does not adequately cool them. When this happens, they may experience heat cramps or life threatening heat exhaustion which, if not dealt with immediately, can easily lead to heat stroke which is a medical emergency often resulting in death.
Learn how to prevent heat stress and learn the symptoms of heat illness and what to do should you or someone you are with exhibit the symptoms. For more information: http://www.osha.gov/Publications/osha3154.pdf