Babies are pretty darn smart right from the start.

Heres what you better know about the Moro reflex, including what it looks like and why it happens.

What is the Moro reflex?

newborn baby, moro reflex, newborn reflexes

It often happens when your baby is sleeping, but can also occur while he’s awake.

If your baby is exhibiting the Moro reflex, youll know it.

Hell suddenly arch his back, fling his arms up and out, and open his hands.

newborn baby, moro reflex, newborn reflexes

Seconds later, as abruptly as the startle started, its over, though your baby may also cry.

Think of it as your newborns first attempts to protect himself and regain his sense of balance.

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How long does the Moro reflex last?

newborn baby, moro reflex, newborn reflexes

It usually lasts for a few months.

In the meantime, dont sweat the startles, as theyre a sign of healthy neurological development.

What triggers the Moro reflex?

newborn baby, moro reflex, newborn reflexes

A tight-but-not-too-tightswaddlekeeps him from flailing his arms and legs so he sleeps more soundly.

Just be warned: Not all babies like being confined, so some take to swaddling better than others.

What happens if the Moro reflex doesnt go away?

newborn baby, moro reflex, newborn reflexes

Remember, babies develop at their own pace.

In the meantime, try not to jump every time your baby jumps!

Those startles are a good sign, even if they do come with some cries.

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