New data also reveals the costs to units and individuals when they push too hard under the assumption that suffering makes a soldier tougher. The idea that ignoring discomfort is the hallmark of "good ...

It's long been understood that working outside in hot weather can be dangerous: Even ancient Egyptians worried about dehydration for workers building the pyramids. Now, a growing body of research is ...

There is something humbling about realizing that the most urgent climate questions we wrestle with today were, in many ways, already being answered decades ago. Scientists, policymakers, and ordinary ...