This paper focuses on the question concerning the nature of human illness in Heidegger’ s thought according to the Daseinsanalytic approach to psychology in its broadest sense. In this regard, we will first clarify the relationship between illness, as a phenomenon of privation in Heidegger’ s own words, the state of health, and the human specific mode of being in this framework which determines how being healthy is to be understood appropriately. Then, the importance of the general existential structures of human being, according to Heidegger, such as human spatiality and the temporal feature of human Dasein, for the Daseinsanalytic illustration of different forms of pathological being-in-the-world will be considered. Finally, we will bring into focus a theoretical challenge related to the Daseinsanalytic understanding of human health, concerning the problematic link between the standard of human openness to the highest degree, freedom for the possibilities of life and existential awareness on the one hand, and the ordinary normal experience of responding to the basic human existential traits as a touchstone of the state of health and the deviations from it, on the other.