Hirsutism Hirsutism Hirsutism is excessive body hair in men and women on parts of the body where hair is normally absent or minimal, such as on the chin, chest, face or body. It may refer to a male pattern of hair growth that may be a sign of a more serious medical condition, especially if it develops well after puberty. Hirsutism can cause much psychological distress and social difficulty. Facial hirsutism often leads to the avoidance of social situations and to symptoms of anxiety and depression. Hirsutism is usually the result of an underlying endocrine imbalance, which may be adrenal, ovarian,
Inclusive fitness in humans "biological theory and evidence" also more strongly support the "nurture" perspective than the "blood" perspective. Both Schneider and Holland argue that the earlier "blood" theory of kinship derived from an unwarranted extension of symbols and values from anthropologists' own cultures (see ethnocentrism). Inclusive fitness in humans Inclusive fitness in humans is the application of inclusive fitness theory to human social behaviour, relationships and cooperation. Inclusive fitness theory (and the related kin selection theory) are general theories in evolutionary biology that propose a method to understand the evolution of social behaviours in organisms. While various ideas related to these theories have