Why food allergy rates have exploded

Remember how food allergies were a rarity when you were a kid? Those days are over — food allergies have risen 50 percent between 1997 and 2007. Sales of the EpiPen, an epinephrine injection in the event of a life-threatening allergic reaction, rose 76 percent in one...

Gut bacteria linked to autism

The digestive tract is home to more than 100 trillion microorganisms. That’s ten times the number of cells in the human body! Although humans can survive without these tiny guests, they perform a host of useful functions, such as fermenting unused food, preventing...

How gut bacteria make you thin or fat

Obesity has long been blamed on laziness and lack of will power, but exciting new research shows the composition of your gut bacteria, which may have been set since birth, can play a deciding role in whether you’re thin or fat. In mice studies, mice that received...