Human conditionThe human condition can be defined as the characteristics and key events of human life, including birth, learning, emotion, aspiration, morality, conflict, and death. This is a very broad topic that has been and continues to be pondered and analyzed from many perspectives, including those of anthropology, art, biology, history, literature, philosophy, psychology, and religion. As a literary term, "human condition" is typically used in the context of ambiguous subjects, such as the meaning of life or moral concerns.
Natural killer cellNatural killer cells, also known as NK cells or large granular lymphocytes (LGL), are a type of cytotoxic lymphocyte critical to the innate immune system that belong to the rapidly expanding family of known innate lymphoid cells (ILC) and represent 5–20% of all circulating lymphocytes in humans. The role of NK cells is analogous to that of cytotoxic T cells in the vertebrate adaptive immune response. NK cells provide rapid responses to virus-infected cell and other intracellular pathogens acting at around 3 days after infection, and respond to tumor formation.
