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Adolescence
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The developmental stage that lies between childhood and adulthood
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Puberty
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The period during which sexual organs mature
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Androgens
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Male hormones
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Estrogens
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Female hormones
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Leptin
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A hormone that appears to play a rule in the start of puberty
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Menarche
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Onset of menstruation
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Secular Trend
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A pattern of change occurring over several generations
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Primary Sex Characteristics
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Characteristics associated with the development of the organs and structures of the body that directly relate to reproduction
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Secondary Sex Characteristics
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The visible signs of sexual maturity that do not directly involve the sex organs
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Spermarche
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A boy’s first ejaculation
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Anorexia Nervosa
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a severe eating disorder in which individuals refuse to eat, which denying that their behavior and appearance, which may become skeletal, are out of the ordinary
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Bulimia
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An eating disorder characterized by binges on large quantities of food, followed by purges of food through vomiting or the use of laxatives
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Myelination
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The process in which nerve cells are insulated by a covering of fat cells
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Prefrontal Cortex
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Part of the brain that allows people to think, evaluate, and make complex judgments in a uniquely human way
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Formal Operational Stage
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Piaget’s stage at which people develop the ability to think abstractly
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