We often judge our immune systems based on how many colds we catch in a year, but experts say that’s an oversimplification of what is a highly complex network of cells, tissues and organs that works ...

Your immune system was supposed to protect you from threats, but sometimes it gets confused about what counts as an enemy and starts attacking your own healthy tissues. This internal betrayal happens ...

Smoke from wildfires and structural fires doesn t just irritate lungs it actually changes your immune system. Harvard scientists found that even healthy people exposed to smoke showed signs of immune ...

Leptomeningeal metastasis is a deadly consequence of cancer that creates an unusually inflamed environment around the brain and spinal cord. One of the inflammatory signalling molecules found in ...

Seeing a potentially infectious person might kickstart the body's immune system, according to a new study. Guillermo Spelucin via Getty Images When you see someone coughing on a train platform, your ...

Chinese scientists have developed a new tool to measure how fast the human immune system ages, and identified a key factor that could help slow this process. The study, led by a research team from the ...

Researchers found that missing a single night of sleep can quickly affect key parts of the immune system. The study found important immune cells became overactive after sleep loss. Researchers say ...