A vitamin A byproduct could weaken the immune system's cancer-fighting ability, according to new Princeton University ...

A single large population of healer cells, called regulatory T cells, is whizzing around our body -- not multiple specialist populations restricted to specific parts of the body as previously thought.

As we age, the immune system gradually declines in function, leaving the body more vulnerable to disease. Scientists have discovered a new way to rejuvenate a key component of immune function, ...

The team’s research provides compelling evidence for the brain’s influence on physiology. A deeper understanding of this mind ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." A new study finds that proteasomes—structures that reside in all cells in the body and typically break ...

There is an undeniable connection between a strong immune system and nutrition. Learn why what you eat matters and other ways to boost your immune system.

Scientists have made a discovery that helps explain why humans and animals are so susceptible to contracting tuberculosis (TB)—and it involves the bacteria harnessing part of the immune system meant ...

Multicellular organisms are a mosaic of different cells, tissues, and systems, each with their own specific function and interactions with other cells within the organism and/or the larger environment ...

Cancer immunotherapies, including cancer vaccines, harness and amplify the immune system’s natural ability to detect and attack cancer cells. In this illustration, immune T cells (pink) attach to a ...