Heart disease, lung disease, cancer ... those you've heard of. But my mother, and hundreds of thousands of others each year, die of the effects of an overwhelming infection, a condition called sepsis. There are many sources for such infections, and many treatments, but the final common pathway is multiple organ failure and death. Actress Patty Duke died at 69, far too young, from sepsis originating in bowel disease. Here's a piece from the Self website looking at the disease, and how to recognize it so that it can be treated.