A set of coordinated, related changes occur during puberty. These biological modifications are controlled by.
Puberty: Many females begin puberty between the ages of 8 and 13, while most boys begin between the ages of 9 and 14. But starting earlier or later can also be OK. Puberty begins when certain brain hormones are released.
Typically, the bodies of girls get curvier. They put on weight around their hips, and as their breasts grow—first with a tiny bit of swelling under the nipple—so do they. Even though one breast may occasionally grow faster than the other, this rarely happens.
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