system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: What actually happens when a young mans voice 'breaks' during puberty?
gpt
Girls' voices break, too.

During puberty, your whole body grows at a rapid pace. That includes your larynx. It thickens and elongates. But when it's at a "transitional" size, it doesn't vibrate as steadily as it did when you were smaller. You grow into it.

And when you get old, the larynx loses some flexibility, which is why old people have creaky voices.