Questão 19

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Texto II
ACTIVE TEENS BUILD STRONG BONES FOR LIFE
Tweens and teens who run, jump and dance may become adults with less breakable bones
Sharon Oosthoek - May 8, 2017

    As much as a third of an adult’s skeleton will form during adolescence. So the more active someone is during this time, the stronger those bones will become.
    Adolescence is a critical time for growing strong bones. That's especially true between the ages of 10 and $14\in$ girls, and 12 to 16 for boys. As much as 36 percent of the adult skeleton forms during these four years. But how strong those bones become depends on how active someone had been during those formative years. That’s the finding of a new study.
    "The bigger the bones children make when they are young, the harder it will be to break when they get older," explains Laura Tosi. She’s a doctor who was not involved $\in$ the new work. But she knows the topic well. Tosi directs the Bone Health Program at Children’s National Medical Center $\in W$ashington, D.C.

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