Recent immunology research has unveiled the complex relationship between vitamin D and immune system function. This vital nutrient is involved in the development and function of the immune system, ...

Sleep does more than fight fatigue. Doctors explain how a chronic lack of sleep weakens immunity, affects vaccine response, ...

Add Yahoo as a preferred source to see more of our stories on Google. These immunity-supporting foods can help you stay healthy and vibrant all winter long. With cold and flu season around the corner, ...

Sat, January 24, 2026 at 2:56 PM UTC The immune system is the body’s natural defense network that helps to keep you healthy from things like bacteria, viruses, and parasites. It’s a complex network of ...

A new study tracking thousands of B cells across more than 100 germinal centers in mice reveals how the system consistently ...

Most people reach for a supplement bottle at the first sign of a sniffle. It's a familiar routine, and the global market for immunity-boosting products reflects just how widespread it is. Yet a ...

Trillions of microorganisms live in the human gut, collectively forming the gut microbiome. They support important bodily ...

Daily usage of a popular over-the-counter medication may compromise immune function while offering temporary pain relief, recent findings indicate. Millions reach for their medicine cabinet daily, ...

As we enter the cold and flu season, you may be wondering what steps you can take to avoid the next round of the common cold. Basic hygiene practices like washing your hands are the frontline defense ...