12/29/2025
👂 Babies Can Hear Your Heartbeat — And It’s One of Their Favorite Sounds
Long before birth, your baby lives in a world of rhythm.
đź’“ Inside the womb, the loudest and most constant sound your baby hears is:
• your heartbeat
• your blood flow
• your breathing
👶 By around 18–20 weeks, babies can hear internal sounds clearly — and your heartbeat becomes a steady, calming background.
đź’ž Researchers believe this familiar rhythm helps babies feel:
• soothed
• regulated
• safe
That’s why after birth, many babies calm down when held chest-to-chest —
they’re hearing the sound that meant home for months.