Topic_206_OK - Topic6 Adolescence Definition...

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Topic 6 Adolescence
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Definition • a transitional period   • from childhood to adulthood  • last about 10 years • reach puberty • become sexually mature
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Physical Development • puberty - process by which a person attains  sexual maturity • rapid growth (height and weight) • adolescent growth spurt (last about 2 years) • happen in girls first • triggered by hormones - affect also mood and  behavior
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Physical Development • e.g. of hormones  – androgen by adrenal gland  – estrogen by ovaries  – testosterone by testes • age 5-9, adrenal gland secret more androgen • androgen influence the growth of hair • both sexes have androgen but different in  amount
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Physical Development • ovaries increase estrogen - stimulate growth of  genital and breast • testes increase testosterone - stimulate growth  of genital, muscles
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Physical Development • primary sex characteristics enlarge, mature • secondary characteristics appear
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Physical Development • signs for males  - spermarche - boys’ first ejaculation - wet dream / nocturnal emission - sperm production 
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Physical Development • signs for females  – menarche  – girls’ first menstruation – occurs shortly after the growth spurt has slowed  down
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Physical Development • factors influence menarche  genetics - similar to mother’s experience physical - bigger girls - earlier emotional  - supportive fathers - later - single mother - earlier • boys like to mature early, girls do not
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Physical Development Effects of early / late maturation • boys like to mature early  – increase self-esteem – have more muscles – stronger and perform better in sports • girls do not like to mature early – become less sociable – lower self-esteem – poor body image
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Physical Development • adolescents become less active   • do not get enough sleep – reasons: study, chat  – act like adults – lower amount of melatonin • concern more about body image  • depression increases 
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Physical Development • anorexia nervosa - starvation sickness • bulimia  – eat and vomit  – fasting and exercising • treatments  – admitted to hospital – drug to encourage eating and inhibit vomiting  – behavior therapy
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Physical Development • substance abuse  – repeated, harmful use of a substance  – examples of substance = drug, alcohol • substance dependence – addiction to a harmful substance
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Physical Development • use of drug begins at adolescence  • gateway drugs 
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This note was uploaded on 10/30/2010 for the course FOSEE CVL1040 taught by Professor None during the Spring '09 term at Multimedia University, Cyberjaya.

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Topic_206_OK - Topic6 Adolescence Definition...

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