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Functional Changes in the Organs

Puberty is initiated by hormone signals from the brain to the gonads (the ovaries and testes). In response, the gonads produce a variety of hormones that stimulate the growth, function, or transformation of brain, bones, muscle, skin, breasts, and reproductive organs. The testes (male sex organs) start to produce sperms and the ovaries (Female sex organs) enlarge in size and the eggs begin to mature. In female puberty includes menstrual cycle.

Teenagers require added nutrients to support the adolescent growth spurt – even greater than an adult. This intensive growth period brings dramatic increases in height as well as hormonal changes affecting every body organ, including the brain. Physical activity also increases with the participation in sports, also increasing the risk for injury. Iron is especially important with the increase in lean body mass in boys. The increase in skeletal mass also boosts teens' requirements for calcium and other bone building minerals.




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