Lupus is a chronic autoimmune disease that can "affect people in different ways," Gomez said.
Autoimmune diseases are a class of diseases that present a huge challenge to sufferers because they take them to a stage where their bodies begin to self-destruct. Their immunity system attacks what it normally protects and hence damages certain parts of the body, like the skin or joints, or in some cases, even the entire body. One such disease, Lupus, has recently gained a lot of public attention after the pop-singer Selena Gomez underwent treatment for the disease. It is a very serious condition and is the kind of auto-immune disease which affects the whole body, attacking normal healthy tissue, including that of the blood, heart, kidneys and lungs.