The immune system defends the body from invaders such as viruses, bacteria, and foreign bodies. Find out how it works, what can go wrong, and how to boost immune health.

Healthy immune systems don't need to be "boosted." Instead, the immune system works best when it is perfectly balanced.

“Protein is an important building block for antibodies and immune cells and supports wound healing,” said Weiler. “Generally, ...

A new study has uncovered a key difference between the immune system of males and females—and it comes down to a single gene.

Blocking a single protein boosts T cell metabolism and tumor-fighting strength. The discovery could lead to next-generation ...

A new study at the University of North Carolina at Chapel Hill has discovered a surprising new mechanism in the brain that ...