Diseases consist of any of the wide variety of microscopic organisms empowered by negative energy. Though not undead, as they aren't derived from any formerly-living substance, it's unknown if these things can be categorized instead as a form of life, thanks to the source of their animate energy. Diseases can occasionally be found collecting into a larger substance, such as green slime, but more commonly they do nothing more than infect a person, eating away at their health from within. The natural, positive-fueled healing processes of most forms of life can slowly destroy disease, as can external application of positive energy properly applied specifically to that purpose. Below are articles on topics associated with the concept of disease in general; specific diseases are found under the Ailments category.