Children are more prone to infections in colder months. Here are tips for parents to keep in mind, and red flags to watch out for. As the temperatures drop, many parents find their children caught up ...

Immunologist Dr. Jenna Macciochi explains that as we age, our immune system starts to decline. Here's how to spot an immune ...

Cortisol resistance does not necessarily mean that it is absent, in fact it means the levels may be normal or even elevated. The problem lies in the body's reduced ability to respond to it ...

Immunity to hepatitis B virus (HBV) induced through vaccination may offer protection against diabetes. In a study, researchers found that individuals with no prior HBV infection but with measurable ...

Add Yahoo as a preferred source to see more of our stories on Google. Your body can’t make vitamin A on its own, so it relies on certain foods or supplements to get it. (Getty Images) (anilakkus via ...