Medically reviewed by Amelia MacIntyre, DO Daily habits like limited sunlight, poor sleep timing, dehydration, and chronic ...

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, ...

People with hard-to-treat asthma often have to use medicines such as systemic steroids that broadly suppress the immune ...

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 ...

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, ...

During the recent Covid-19 pandemic, the rate of serious illness and death was jarringly high in older populations. Why? Weakening immune systems — as we age, we become more vulnerable to infections, ...

Does a glass of OJ a day keep the doctor away?

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, ...

Myokines are hormones that communicate via the bloodstream with various organs, such as the brain, adipose tissue, liver, ...

Experts say getting a couple minutes of morning sunlight can boost your mood and energy more than drinking a cup of coffee ...