While the holiday season is a special time, it can also mean more stress and fatigue. Board certified surgeon Dr. Cedrek McFadden breaks down the differences between feeling tired and being fatigued, ...

The flu can also cause a general feeling of fatigue or malaise, Ray says, as well as gastrointestinal issues like diarrhea ...

ANSWER: Both colds and influenza (the “flu”) are respiratory illnesses that are caused by viruses. Influenza is caused specifically by the influenza viruses, which come in two main types (A and B).

"It's one of those things where all newts are salamanders, but all salamanders aren't newts," Nick Burgmeier, a research ...

It used to be that there was a clear demarcation between a coupe and sedan: one had two doors, the other had four. But the ...