Although you might like to think of yourself as your own person, you actually share your body with many millions of bacteria. Here are five ways gut bacteria may influence health.
When it comes down to it, it's your immune system versus the world. From "innate" immunity — which protects your body against basic threats — to "adaptive" immunity, which homes in on specific targets, your immune system has you covered. Sometimes, however, your immune system can turn against you, leading to autoimmune diseases. To keep up with all things immune, check here for the latest news.
A good strategy for developing a universal flu vaccine may be to try to mimic the body's natural immune response to a pandemic flu virus, a new study suggests.
Immune cells called natural killer cells may play a role in the development of Sjögren’s syndrome, a new study suggests.
A woman in Germany developed what looked like frostbite even though she had not been exposed to extreme cold.
Two men with HIV who received bone marrow transplants in Boston appear to have no detectable levels of the virus in their bodies
A long journey in space may actually compromise the immune system and make astronauts more susceptible disease.
Our skin makes vitamin D when its exposed to sun, and research shows this "sunshine vitamin" boosts the immune system. Here are some tips for getting enough vitamin D year-round.
One day, components of mucus might be added to baby formula to help protect the baby against infection from viruses.
Having kids may reduce a person's risk of catching a cold, but not for the reason that researchers suspected.
It has long been thought that disease-causing viruses can take shelter from your body's defenses, the immune system, by hiding inside cells, but this is not the case, a new study finds.
Missing a night's sleep produces the same response from the immune system as does experiencing physical stress.
The Nobel Prize committee is not changing its decision to award the 2011 prize in medicine to a recipient that died days before the announcement.
The finding that older people can develop gluten digestion problems means environmental factors are at play.