Your Brain Deleted 800 Sounds Before Age 1

Added: 2026-05-28

[00:00:00]Your brain deleted 800 [music] sounds before your first birthday.

[00:00:04]Newborns hear every consonant [music] and vowel on Earth. That's 600 consonants and 200 vowels total. By 12 months, your brain pruned the unused [music] ones.

[00:00:16]Patricia Kuhl proved this at the University of Washington.

[00:00:19]>> [music] >> Japanese babies hear R and L as perfectly. Adults cannot. Comment your native language. Your neurons literally rewired to ignore foreign sounds. That's why [music] perfect adult accents are nearly impossible. Your brain chose efficiency over ability at 12 months.

[00:00:36]Kuhl's team found bilingual babies never lost those sounds.

[00:00:41]Like if your brain betrayed you, too.

[00:00:42][music]