They may also: 1  Have a combination of skin, hair, and eye color that is outside the range for humans. 2  Some different preferred environment to humans (e.g. mountains, caves, tundra, deep forest). 3  Some sort of crafting/building ability. Lots of dwarves have this trait. 4  Be Always Chaotic Evil, Always Lawful Good, etc.
Chronic forms of sinusitis are also thought to potentially be a cause of the condition. Whatâs most important to understand about black mucus in nose areas is that it is not normal. There is something that is causing the change in hue in the protective goo.
While it may be true that the black lung was that of a smoker and the pink lung that of a non-smoker, that is not the end of the story  we now know that cancerous organs turn black. A while ago channel 4 ran some programmes of autopsies done live by Dr Von Hagens, and one episode was on cancer.