| Hormones: puberty begins with the earliest signs that adult body parts are developing. In both males and females the onset of puberty is controlled by the release hormones. Hormones are powerful body chemicals that circulate through the blood. |
| Hormones: puberty begins with the earliest signs that adult body parts are developing. In both males and females the onset of puberty is controlled by the release hormones. Hormones are powerful body chemicals that circulate through the blood. |