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

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 ...

Leading medical experts reveal that quick-fix tablets and vitamin drinks are largely ineffective, and the only real way to ...

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

Your immune system is your body’s first line of defense against harmful invaders, such as bacteria, viruses, and toxins. Maintaining its strength is essential for overall health, and the foods you eat ...

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 ...

Eating raw garlic can help prevent colds, boost heart health, and support digestion, among other benefits. Learn why ...

Discover how smart workouts, sauna sessions, sleep, and stress relief work together to strengthen your immune system and help you fight off illness.

Q. Is it really possible to “boost” your immune system, or is that a myth? A. When flu season hits or stress runs high, you’ll often hear advice on how to “boost” your immune system. But here’s the ...

Fight off winter chills and seasonal sickness! Discover four simple, delicious, and powerful soup recipes packed with natural ...