Development of the human body used to approximately judge a child's age based on physical development. Puberty is the process of physical changes through which a child's body matures into an adult body capable of sexual reproduction. It is initiated by hormonal signals from the brain to the gonads: the ovaries in a girl, the testes in a boy. In response to the signals, the gonads produce hormones that stimulate libido and the growth, function, and transformation of the brain, bones, muscle, blood, skin, hair, breasts, and sex organs. Physical growth—height and weight—accelerates in the first half of puberty and is completed when an adult
European Society for the study of Human Evolution Max Planck Institute for Evolutionary Anthropology. The main goals of the society are to stimulate and facilitate communication and scientific collaboration between researchers and scientists involved in the study of human evolution, primarily through the organization of conferences, which are held annually in the second half of September. ESHE is dedicated to supporting activities which encourage new and innovative research in the field of human evolution, and is in particular supports the research of young scientists. Each year, ESHE hosts an annual meeting to showcase interdisciplinary research on human evolution from around the world. These meetings are held in the