Newborn Basics
The startle reflex is a normal, involuntary reaction newborns have when they feel a sudden movement or sound—or even when they feel like they're "falling" for a moment.
Noah may:
This is a sin of a healthy nervous system.
Noah's brain and body are still connecting. His reflexes are automatic responses that protect him and prepare him for future motor skills.
Even gentle movements—laying him down or shifting positions—can trigger it.
The startle reflex usually fades by the time babies are 3-4 months old as their muscles and nervous system mature.
Until then, it's completely normal.
A proper swaddle can limit sudden arm movements that wake him up.
Move Noah gradually when laying him down or picking him up.
A gentle hand on his chest helps him settle quickly.
Soft humming or whispering helps Noah relax back into sleep.
The startle reflex doesn't mean Noah is frightened—it means he's developing exactly as expected. Abby's presence, touch, and voice help him calm down faster than anything else.