Experts can’t agree on the cause of an Encephalitis lethargica outbreak.

Even if they don't verbalize it, you can tell how miserable someone is by 10 things they care about way too much. They're often stuck in their heads, and it becomes obvious to those around them.

While there are some clear signs of heart disease, like shortness of breath or chest pain, others aren’t as well-known, even when they’re in plain sight.

Getting a solid eight hours of sleep per night sounds wonderful in theory. In reality? Between late-night TV, racing thoughts at 11 p.m. and the occasional g...

Taking care of your health becomes even more important at this stage of life, "but a lot of people do not realize that until symptoms start showing up.”

Adults accept it as conventional health wisdom that we require eight hours of sleep each night in order to be healthy. Yet an expert on human evolutionary biology recently argued that this might actually be misleading.“Do you lose sleep over whether you sleep…

Health workers inside the epicenter of Congo's outbreak say they are working with little pay or rest. The mining town of Mongbwalu attracts a huge number of laborers for large gold mines who live in crowded mining camps. That makes the transmission of the dis…

Plus, tips from a chef on how to use it in your kitchen.

The melanoma doctor's brain cancer treatment experiment has sparked hope for a breakthrough.