"...But in the US, the sports drink industry drove a different agenda and wanted runners to drink as much of their product as was possible. As a result US runners were conned to believe that if they did not drink “as much as tolerable” they would at best have a poor race and at worst die from dehydration. Instead, this advice caused an epidemic of hyponatremia and poor performances since we now know that athletes who drink ahead of their thirst impair their exercise performance...."This is becoming a common theme. Shoes, food, hydration...
And more kudos to Western States for leading the way to better runner's health. It's a horrible tragedy when runners are injured by following medical advice, as was happening at WS a few years ago:
"...So, for the 2010 event, we completely removed from the weight change guidelines any criteria for holding a runner based upon weight change. These guidelines provided to the medical and aid station staff basically specify that weight loss of up to 3-5% is appropriate, less than this should trigger a recommendation to consider reducing fluid and sodium intake, and more than this should trigger a recommendation to consider increasing fluid intake, and possibly sodium intake, as well....And in conclusion: