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, ...

Training yourself to expect good things to happen sounds like helpful advice in general. Now, new research suggests that good ...

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.

NBC News medical contributor Dr. Natalie Azar and TODAY health and nutrition expert Joy Bauer stop by Studio 1A to share tips ...

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

Vitamins and supplements like zinc and cod liver oil are often touted for their ability to boost your immune system, but Jeffrey Bland, the "father of functional medicine," says that's not actually ...

Trillions of microbes live in the human gastrointestinal tract, where they play critical roles in our health and biology; they can help us break down food, absorb nutrients; and they affect the immune ...

Research led by Lancaster University has discovered that a class of antibiotics—fluoroquinolones—can directly alter the ...

The idea of turning back the clock on the immune system has moved from science fiction to a concrete experimental strategy. A ...

"I've heard, 'I can boost my immune system if I take a lot of vitamins.' It could be vitamin D, vitamin A [or] zinc," Bland says. "[But] those nutrients don't boost the immune system. Those nutrients ...