Joe had been bothered by a bright red light on the dashboard of his car. Joe took his car to a mechanic who fixed the problem in a few minutes. Joe asked the man how he did it so quickly. Disabling the automobile's warning system may result in serious damage. It is dangerous.
Symptoms are messengers.
The message is no less important because it was delivered by a ninety pound weakling than one delivered by a three hundred pound football player. Therefore, someone with a kidney disease may tell her friend that her goal is to learn the cause of her irregular pulse rate. Multiple sclerosis is an autoimmune disease. A foreign antigen is a material that has entered the body and is fueling a damaging immune response. Therefore, it is important for individuals with autoimmune diseases to learn how the material causing the illness is getting into the body.