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An infant swaddled by a parent.

Updated on Dec. 10, 2025

2 minute read

What Does the Data Say About Getting Infants to Sleep?

Emily Oster, PhD

formula milk in feeder

Updated on Dec. 10, 2025

2 minute read

Why Is There a Daily Serving Limit for Formula but Not Breast Milk?

Emily Oster, PhD

Bottles of breastmilk and formula.

Updated on Dec. 10, 2025

10 minute read

All About Combo Feeding

Emily Oster, PhD

A smiling baby sips formula from a bottle.

Updated on Dec. 10, 2025

3 minute read

How Can I Get Rid of Guilt Around Formula Feeding?

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 baby sleep stretched across a white pillow.

Updated on Dec. 2, 2025

2 minute read

Should I Wake My Baby to Feed Them?

Emily Oster, PhD

baby sitting on couch and drinking water through a feeder

Updated on Dec. 2, 2025

2 minute read

When Can Babies Drink Water?

Emily Oster, PhD

Baby in parent's arms having a bottle

Updated on Nov. 26, 2025

3 minute read

Should I Give My Six Month Old Cow’s Milk Instead of Formula?

Emily Oster, PhD

A parent trying to feed the baby with the feeder

Updated on Nov. 26, 2025

2 minute read

How Can I Get My Baby to Take a Bottle?

Emily Oster, PhD

a parent holding a baby and the nurse is injecting a vaccine to the baby

Updated on Nov. 26, 2025

2 minute read

Should I Space Out My Baby’s Vaccines?

Emily Oster, PhD

An adorable bald baby.

Updated on Nov. 19, 2025

2 minute read

When Will My Baby’s Hair Start Growing?

Emily Oster, PhD

A father holding the hands of his son.

Updated on Nov. 17, 2025

4 minute read

How Much Does Having an Absent Parent Affect Children?

Karey O’Hara

An array of used tissues and cold medicines on a yellow background.

Updated on Nov. 19, 2025

2 minute read

Why Aren't There Better Breastfeeding-Safe Medicines?

Emily Oster, PhD

A breast pump and a bottle.

Updated on Nov. 12, 2025

8 minute read

Everything You Need to Know About Pumping

Emily Oster, PhD

Parent and baby in swimming pool

Updated on Nov. 11, 2025

3 minute read

Are Chlorine Pools Safe for Babies?

Emily Oster, PhD

Close-up of HFMD blisters on a child's feet.

Updated on Nov. 11, 2025

7 minute read

Everything You Need to Know About Hand, Foot, and Mouth

Emily Oster, PhD