Medically reviewed by Anita C. Chandrasekaran, MD A strong immune system helps protect you from infections by germs such as ...

A lot of people feel it this year: you catch something, and it lingers. The fatigue sticks around. The cough hangs on.

In the following weeks, there will likely be an increase in respiratory illnesses such as influenza, COVID-19 and RSV. Now is an excellent time to strengthen your immune system to help combat those ...

The NIH Office of Dietary Supplements published a fact sheet in March 2025 reviewing the evidence behind vitamins C, D, and A ...

The human body operates like a finely tuned orchestra, with each system playing its part in perfect harmony. However, sometimes this delicate balance breaks down in ways that can leave people ...

For years, cold showers were the domain of athletes and wellness zealots. But new research in genetics and metabolism suggests that a quick blast of cold water has benefits way beyond mental toughness ...

Secondary infections caused by bacteria or viruses during hospital care remain a long-standing global challenge, despite ...

Scientists in the Blavatnik Institute at Harvard Medical School and MIT have created a new family of tools that, for the ...

Recent studies have shown that even if you feel healthy and fit, your immune system could be aging quicker than you think, which could increase the risk of infections and immune-related disorders.

A hot day might not seem like a threat that the immune system would need to deal with. But as climate change brings higher average temperatures and more frequent deadly heat waves, the body’s ...

Across both mice and humans, we found that males tended to recover from pain more quickly than females. The reason appears to lie in how monocytes behave after injury. In males, these immune cells ...

Researchers at the University of California, Davis, have traced a deadly cat coronavirus in a way that changes what you think ...