From cholera to norovirus, Giardia to hookworms, the gut is vulnerable to an impressive array of pathogens. To keep us alive in the face of this onslaught, the intestinal immune system must be ...

A team of researchers at the Icahn School of Medicine at Mount Sinai, Weill Cornell Medicine, and other institutions have uncovered a key biological explanation for why eczema so often starts in ...

Your immune system may be weak if you have frequent, severe, or extended infections. Learn more signs of a weak immune system.

Women suffer more. But why? A new study points to an immune mechanism that differs between women and men, which may affect the duration of pain after trauma.

Vitamin C and vitamin D both support immune function in different ways, but neither will prevent you from getting sick on their own. Vitamin C may slightly shorten colds, while vitamin D deficiency ...

When respiratory virus season hits, it’s fair to want to do everything you can to supercharge your immune system. But while supplements come up a lot, it’s hard to know which to choose. When it comes ...

Elderberry supplements and syrups pop up all over the place during cold and flu season, making it feel like everyone else knows something you don’t. But is elderberry full of the immune-boosting ...

Add Yahoo as a preferred source to see more of our stories on Google. With the peak of cold and flu season here, did you know that getting enough sleep can help protect you from getting sick? “Sleep ...

Getting enough sleep can help protect you from getting sick. “Sleep is critically important to maintaining a healthy immune system, so we need to sleep enough. We also need to have good timing of our ...