The article addresses several areas that were previously unanswered such as overhydration, electrolyte imbalance, type of clothing and gear and practicality.
A series of tables that look at WBGT (wet bulb globe temperature) and level of work exertion make the data easy to understand. Previous articles I have read did not actually quantify what was “easy work” versus “hard work”. Obviously, the majority of this data comes from military participants and looks at work related to typical military duties.