Heat exhaustion happens when your body loses too much water and salt, usually from sweating. Whereas heat stroke is a serious medical emergency that happens when your body is unable to control its ...

It wasn’t long after humans discovered metals that they also discovered ways to apply heat to them to change their properties, such as making the metal stronger or more flexible. Here are some concise ...

This Journal feature begins with a case vignette highlighting a common clinical problem. Evidence supporting various strategies is then presented, followed by a review of formal guidelines, when they ...