Why can the human immune system often remember a vaccination for a whole lifetime? Researchers at ...

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

From cholera to norovirus, Giardia to hookworms, the gut is vulnerable to an impressive array of pathogens. To keep us alive in the face of this onslaught, the intestinal immune system must be ...

Your immune system may be weak if you have frequent, severe, or extended infections. Learn more signs of a weak immune system.

Vitamin C and vitamin D both support immune function in different ways, but neither will prevent you from getting sick on their own. Vitamin C may slightly shorten colds, while vitamin D deficiency ...

Getting enough sleep can help protect you from getting sick. “Sleep is critically important to maintaining a healthy immune system, so we need to sleep enough. We also need to have good timing of our ...

Add Yahoo as a preferred source to see more of our stories on Google. With the peak of cold and flu season here, did you know that getting enough sleep can help protect you from getting sick? “Sleep ...

Pain is something most people experience after an injury, whether from a sprained ankle, surgery or car accident. Normally pain fades as the body heals. But it may last longer in women than in men, ...