Our immune systems prevent and limit infections. They are a complex set of organs, cells, tissues and proteins that work together to protect our bodies from harmful invaders such as bacteria, viruses, ...

Many of the effects of climate change play out at a very large scale: Heatwaves that grip entire continents. Flooding that submerges vast swaths of island nations and continental coastal areas. Other ...

Cancer immunotherapies, including cancer vaccines, harness and amplify the immune system’s natural ability to detect and attack cancer cells. In this illustration, immune T cells (pink) attach to a ...

Exercise may be one of the simplest and most effective ways of allowing your body to heal from long-term COVID-19 symptoms. A team of researchers from the United Kingdom has shown that a supervised ...

Malignant tumors are often described as immune-suppressive or "immune cold," meaning the patient's immune system does not recognize or attack the tumors. Patients with these tumors typically respond ...

A person’s menstrual cycle may affect their immune system’s response, causing fluctuations throughout the month. The menstrual cycle involves a series of changes in hormone levels and structures ...

A new study sheds light on the timeline of the human immune response when confronted with SARS-CoV-2 and other infectious diseases. Ergin Yalcin via Getty Images More than four years after Covid-19 ...

You’re sitting in a meeting or watching a movie when it strikes, that maddening itch deep in your ear canal that no amount of discreet finger wiggling seems to satisfy. Most of us brush off these ...

Your body’s stress response can trigger several physiological changes, which can affect immune function. Why you’re stressed and how long you’re stressed can impact how your immune system responds.