Your immune system defends against injury and disease. It attacks pathogens, neutralizes harmful substances and fights disease-causing changes in the body. But less has been known about its role in depression, until experts realized it can get hacked — by stress.

A potentially dangerous fungal infection is in the news again. Though cases have cropped up recently, they’ve actually been on the rise for a few years in the U.S. So what do you need to know about C. auris and how can you determine whether you or your family is at risk?

A growing number of germs are becoming harder to treat with antibiotics, like those that cause drug-resistant pneumococcal pneumonia, staph or even MRSA. But scientists may have the answer: next time you’re prescribed antibiotics, you should supplement omega-3s, too…

A metabolic by-product you can trick your body into producing more of appears to supercharge immune cells as they fight infection and disease, research is finding. There are a couple of ways to get them going…

Autoimmune problems that arise when your immune system attacks your own organs may afflict as many as 50 million Americans. However, making certain dietary changes may bring a measure of relief and offer protection against this widespread health issue…

A tiny organ that’s often ignored is the key to helping keep colds and flu away and your immune system balanced to avoid autoimmune disease. But it’s also connected to immune system aging. Here’s how to keep yours youthful…

Decades of research confirm that exercise promotes head to toe health. But did you ever wonder exactly what it is about exercise that helps prevent disease? Find out what really goes on inside of your cells when you exercise…

If you seem to catch whatever bug is going around, your T cells may be exhausted. This type of exhaustion isn’t something a quick nap can fix, but researchers are exploring exactly why it occurs, revealing big clues about what to do about it.

Looking back, researchers have been able to see the effects of a COVID-19 infection on the heart, and how it strikes at the very power source of cells that are responsible for helping the heart keep ticking. Here’s what they’ve learned…

Nake mole rats live nearly 10 times longer than other rodents of similar size and have shown resistance to age-related diseases including cancer, neurodegeneration, cardiovascular disease and arthritis. And their secret may help us do the same…

Does aging have to come with a host of age-related diseases? If we work hard at keeping our health all our lives, is there an expiration date that takes it all south? No, but it does have a key driver we may soon put a hard brake on…

Garlic has been used medicinally for centuries. And modern research has found it can stand up to many strains of bacteria. But what about the common cold? Let’s see how it stacks up…