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Human growthand 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 female, the testicles in a male.
Adolescence is a time of rapid cognitive development. [ 60] Piaget describes adolescence as the stage of life in which the individual's thoughts start taking more of an abstract form and the egocentric thoughts decrease, allowing the individual to think and reason in a wider perspective. [ 61]
Child development. Child development involves the biological, psychological and emotional changes that occur in human beings between birth and the conclusion of adolescence . Childhood is divided into three stages of life which include early childhood, middle childhood, and late childhood (preadolescence). [ 1]
Cuteness is a type of attractiveness commonly associated with youth and appearance, as well as a scientific concept and analytical model in ethology, first introduced by Austrian ethologist Konrad Lorenz. [ 1] Lorenz proposed the concept of baby schema ( Kindchenschema ), a set of facial and body features that make a creature appear "cute" and ...
Human physical appearance. Human physical appearance is the outward phenotype or look of human beings. Image of a European female (left) and an East Asian male (right) human body seen from front (upper) and back (lower). Adult human bodies photographed whose naturally-occurring pubic, body, facial, but not head hair have been deliberately ...
Biological, legal and social definitions. Children playing ball games, Roman artwork, 2nd century AD. In the biological sciences, a child is usually defined as a person between birth and puberty, [ 1][ 2] or between the developmental period of infancy and puberty. [ 3] Legally, the term child may refer to anyone below the age of majority or ...
Male primary sex characteristics are the penis, the scrotum and the ability to ejaculate when matured. Female primary sex characteristics are the vulva, vagina, uterus, fallopian tubes, cervix, and the ability to give birth and menstruate when matured. [ 1] Hormones that express sexual differentiation in humans include: The following table ...
Physical education, often abbreviated to Phys. Ed. or PE, and sometimes informally referred to as gym class or simply just gym, is a subject taught in schools around the world. PE is taught during primary and secondary education and encourages psychomotor, cognitive, and effective learning through physical activity and movement exploration to ...