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A breast pump set with no milk is set out on a wooden table.

Updated on Jun. 17, 2025

2 minute read

How Common Is Dangerous Bacteria on Breast-Pump Parts?

Emily Oster, PhD

A baby on its tummy looks over at a full bottle attached to a manual breast pump.

Updated on Jun. 2, 2025

3 minute read

Is a Baby More Efficient than a Breast Pump?

Emily Oster, PhD

Bowls of various pills and capsules on a light pink background.

Updated on May 27, 2025

9 minute read

Vitamins Are (Mostly) Pointless

Emily Oster, PhD

A parent cuddles with an infant while feeding them a bottle.

Updated on May 15, 2025

3 minute read

Will Breastfeeding Be Easier the Second Time?

Emily Oster, PhD

Baby in a sleep sack and printed onesie, smiling big with two bottom teeth.

Updated on Apr. 29, 2025

2 minute read

Do I Have to Stop Night Feeding?

Emily Oster, PhD

A baby drinking milk from a bottle

Updated on Apr. 28, 2025

2 minute read

Can I Give My Baby Colostrum Then Switch to Formula?

Emily Oster, PhD

A mom breastfeeding her baby

Updated on Apr. 28, 2025

2 minute read

How Much COVID Protection Will My Baby Get from Breastfeeding?

Emily Oster, PhD

Four children smiling and jumping with hands raised into the air.

Updated on Apr. 13, 2025

8 minute read

What Does Matter for Childhood Outcomes?

Emily Oster, PhD

Lit cigarette in a red ashtray on a green bench with fallen leaves around it.

Updated on Apr. 9, 2025

3 minute read

Can I Smoke Socially While Breastfeeding?

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

Breast pump near a window

Updated on Jan. 31, 2025

2 minute read

Does Quality of Pumping Space Impact Breastfeeding Length?

Emily Oster, PhD

A baby drinking milk out of a bottle

Updated on Jan. 13, 2025

2 minute read

Will Cold Medicines Decrease My Milk Supply?

Emily Oster, PhD

a pregnant person wearing bra is standing in a park

Sep. 5, 2024

1 minute read

Should You Avoid Certain Bras Postpartum?

Emily Oster, PhD

baby lying in baby bed and crying

Sep. 4, 2024

3 minute read

Reflux in Babies and Toddlers

Krupa Playforth, MD

a parent and a child laying sidewise on a bed

Aug. 23, 2024

2 minute read

Can I Breastfeed on Paxlovid?

Emily Oster, PhD

a parent holding a baby and using a laptop

Jul. 22, 2024

5 minute read

Postpartum Support (And Lack Thereof)

Emily Oster, PhD