Done here.
It was such a simple question to a very brief sentence in which any factual error could have been immediately contradicted by a person who "trained with the military" in parts south and west. So I'm either lying about black flag days, or you've never experienced one. Now your integrity is in question.
When a well fed, well hydrated, physically fit Marine is ordered to shut it down because of the inherent risk of heat related illness, the science in that decision supersedes your grammar school health lesson.