The Idaho State Journal reports:
Some parts of the country are experiencing record high temperatures this summer. Las Vegas hit 117 degrees and Phoenix topped the charts at 119 degrees. Salt Lake City also hit the triple digits as did several areas in California. Dry heat or not, residents and visitors were undoubtedly feeling it, and anytime the mercury gets remotely close to these temperatures, staying hydrated is of paramount importance.
This is especially the case for anyone participating in outdoor activities or any sort of exercise program. Our bodies produce sweat in order to regulate our core body temperature. As the moisture that appears on your skin evaporates, you cool off. In fact, human beings are the most effective mammal when it comes to regulating our body temperature. At the extreme, an adult can sweat as much as two to four liters per hour.
All of this water needs to be replaced, but remember that when you sweat you are not just losing water, you are also losing minerals such as sodium and potassium. According to Dr. David McCarron, adjunct professor at University of California, Davis, “You must replace the sodium and potassium along with the water. This is why athletes drink sports drinks like Gatorade, rather than just water. Replacing water without sufficient sodium can quickly produce hyponatremia, a potentially fatal condition.”