Brad, good morning I hope you are well and having a great Thursday. With regard to your question, this is actually a misconception. As you are reading the larynx is composed of pieces of cartilage, the largest of which is known as the Adam’s apple. Once adolescents occur, testosterone levels in boy’s increases from 20-60-ng/100 ml to 300- 600 ng/100ml. However girls’ testosterone levels stay at 20-60 ng/100ml. When the larynx grows larger during puberty, it sticks out at the front of the throat which becomes visible and is known as the Adam’s apples. Everyone's larynx grows during puberty; however a girl's larynx does not grow as much as a boy's does. This larger larynx gives boys deeper voices.