Puberty Sexual Education For Boys And Girls Subtitles English Verified |verified| <POPULAR • Breakdown>

The larynx (voice box) grows under testosterone. The vocal cords lengthen and thicken, causing the voice to "crack" (suddenly jump between high and low pitches). This resolves after 1-2 years. The enlarged larynx creates the visible in some men.

This story provides accurate and age-appropriate information about puberty and sexual education for 12-year-old boys and girls. The topics covered include: The larynx (voice box) grows under testosterone

The penis and testicles grow larger. The skin of the penis may change color slightly. The larynx (voice box) grows under testosterone