" hey, my friend - you are looking a little bit sick.........? " 

Eine Krankheit (synonym: Erkrankung, Morbus, griech: Nosos - vgl. dann Noxe) ist eine Störung der körperlichen, kognitiven, sozialen und/oder seelischen Funktionen, die die Leistungsfähigkeit oder das Wohlbefinden eines Lebewesens subjektiv oder intersubjektiv deutlich wahrnehmbar negativ beeinflusst oder eine solche Beeinflussung erwarten lässt.

A disease is an abnormal condition of an organism that impairs bodily functions all over.[citation needed] In human beings, "disease" is often used more broadly to refer to any condition that causes discomfort, dysfunction, distress, social problems, and/or death to the person afflicted, or similar problems for those in contact with the person. In this broader sense, it sometimes includes injuries, disabilities, disorders, syndromes, infections, isolated symptoms, deviant behaviors, and atypical variations of structure and function, while in other contexts and for other purposes these may be considered distinguishable categories.