Wondering how cold cranks up the calorie burn? Your body thrives on consistency—specifically, a core temperature of 98.6°F.

Cold is one of the oldest forces our bodies have had to reckon with. Anyone who has shivered through winter knows how powerfully the body responds to cold. But what if simply remembering the cold ...

Cold does not feel the same on your fingertips as it does deep in your chest, and new research shows that this is not just a ...

The thought of stepping into an icy shower first thing in the morning makes most of us shudder. That initial shock as cold water hits your warm skin triggers an immediate gasp, racing heart, and ...