Most people think sleep is just downtime, but turns out your body is actually pretty busy while you’re sleeping. Your metabolism doesn’t just clock out when you fall asleep – it’s more like switching ...

We’ve all been there – crying our eyes out during a sad movie or after a tough day, wondering if all those tears are at least burning a few calories. Well, it turns out they actually do! I’ve ...

For centuries, the nature of a fever — and whether it's good or bad — has been hotly contested. In ancient Greece, the physician Hippocrates thought that fever had useful qualities, and could cook an ...