Anyone who has weathered a bad stomach bug knows the feeling: a loss of appetite that sets in and lingers, even after the initial illness. For the millions of people around the world who are ...

A new study traces the molecular pathway connecting the gut immune system to the brain during a parasitic infection, explaining how the immune system triggers a loss of appetite.

Our immune system protects the body from infections and harmful changes throughout our lives. However, it loses its ...

The thymus is a small organ located in the upper chest that plays a central role in the immune system: it produces T cells - specialized immune cells that recognize and fight pathogens.

As the body ages, so does the immune system. The immune system usually becomes less effective in older age, a process known as immunosenescence. This can increase the risk of: While you can’t prevent ...

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 ...

Sharon Evans, a cancer immunologist at Roswell Park Comprehensive Cancer Center who studies the role of temperature in T cell responses, said that, to date, the influence of the external environment ...

As winter looms on the horizon, so do viruses and bacteria prepared to usher in annual colds and flu. The immune system is the first line of defense against these types of viral infections and ...

I am lying under a blanket, feeling rough, staring at a bowl of oranges. Every fibre of my being is urging me to devour the lot. I can hear my mum – and medical friends at university – insisting that ...