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Bottles of breast milk and a breast pump are arranged on a yellow cloth.

Updated on Oct. 8, 2025

3 minute read

What Causes High-Lipase Breast Milk?

Emily Oster, PhD

An infant licks a piece of avocado and smiles.

Updated on Mar. 11, 2025

3 minute read

Can My Baby Wean Before One Year?

Emily Oster, PhD

A parent holding a crying baby

Updated on Mar. 6, 2025

3 minute read

Will My Second Baby Have Colic, Too?

Emily Oster, PhD

A close-up of the hands of an older relative holding a newborn baby.

Aug. 16, 2023

3 minute read

Should I Make My Relatives Get a Tdap Booster?

Emily Oster, PhD

A judgemental person holding a magnifying glass looks on, horrified.

Updated on Apr. 1, 2025

2 minute read

My Relative Thinks My Baby Is Autistic. Am I Missing Signs?

Emily Oster, PhD

A baby on a blue sheet wears a pretend parachute and skydiving goggles.

Aug. 9, 2023

2 minute read

Is High-Altitude Travel Dangerous for a Baby?

Emily Oster, PhD

A breast pump and full bottle of milk sit on a stack of diapers against a blue background.

Updated on Aug. 13, 2025

3 minute read

Is It Better to Breastfeed or Pump?

Emily Oster, PhD

A small child smiles as they peep over the side of a white bathtub.

Updated on Nov. 10, 2025

2 minute read

Is It Safe to Bathe My Baby During a Lightning Storm?

Emily Oster, PhD

A baby DJ in a red sweater plays a kid song on a piano.

Updated on Jun. 2, 2025

3 minute read

Is Kid Music Good for My Baby?

Emily Oster, PhD

An organic mattress with pillows and soft toys

Updated on Apr. 15, 2025

3 minute read

Should I Get an Organic Mattress for My Child?

Emily Oster, PhD

An ultrasound view of the bottoms of a baby's feet.

Jul. 19, 2023

2 minute read

How to Understand My Baby's Clubfoot Diagnosis

Emily Oster, PhD

A smiling baby sips formula from a bottle.

Updated on Jun. 25, 2025

3 minute read

How Can I Get Rid of Guilt Around Formula Feeding?

Emily Oster, PhD

A child leans over a sink to drink water out of a kitchen tap.

Updated on Nov. 26, 2025

2 minute read

Is Formula Made With Tap Water Safe?

Emily Oster, PhD

A parent looks on as a pediatrician gives a smiling baby a vaccination.
In the news

Updated on Dec. 5, 2025

2 minute read

Should My Baby Get the Hepatitis B Vaccine?

Emily Oster, PhD

A newborn infant holds a parent's thumb in a closeup.

Jul. 14, 2023

2 minute read

Will a Baby Born at 37 Weeks Be OK?

Emily Oster, PhD

A freezer door shows bags and bottles of frozen breastmilk.

Updated on Oct. 21, 2025

2 minute read

Should I Throw Away Unused Thawed Breast Milk?

Emily Oster, PhD