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A breast pump and a bottle.

Updated on Nov. 12, 2025

8 minute read

Everything You Need to Know About Pumping

Emily Oster, PhD

Woman mixing a bottle of formula
In the news

Updated on Nov. 11, 2025

4 minute read

ByHeart Has Recalled All of Its Infant Formula

Emily Oster, PhD

A parent breastfeeding a newborn.

Updated on Nov. 5, 2025

3 minute read

How Do I Get My Baby to Latch?

Emily Oster, PhD

A parent playing with a newborn.

Updated on Nov. 6, 2025

8 minute read

What the Data Actually Says About Breastfeeding

Emily Oster, PhD

Updated on Oct. 31, 2025

4 minute read

What’s the Data Behind Post-Egg Retrieval Guidelines?

Meggie Smith, MD

A couple holding hands in a doctor's office.

Updated on Oct. 31, 2025

3 minute read

Is There an Advantage to Waiting In Between Embryo Transfers?

Meggie Smith, MD

Newborn's feet under blanket.

Updated on Oct. 30, 2025

8 minute read

All About Circumcision

Emily Oster, PhD

A doctor clamping the umblical cord of a newborn after delivery.

Updated on Oct. 29, 2025

2 minute read

How Should I Care for My Baby’s Umbilical Cord?

Emily Oster, PhD

Hands hold a model of the female reproductive system, including the uterus.

Updated on Oct. 23, 2025

5 minute read

Is There a Link Between Hair Relaxers and Cancer?

Emily Oster, PhD

A care taker with children in a daycare.

Updated on Oct. 23, 2025

9 minute read

Child Care Is Expensive and Hard to Find. Here’s How We Fix It.

Emily Oster, PhD

A baby wearing headphones.

Updated on Oct. 22, 2025

3 minute read

What’s a Safe Level of Noise for My Baby

Emily Oster, PhD

A toddler looking at parents fighting in the kitchen.

Updated on Oct. 23, 2025

4 minute read

How Much Does Marital Conflict Impact Children?

Karey O’Hara

Four wooden spoons with vitamin tablets and half cut orange, lime and kiwi.

Updated on Oct. 18, 2025

3 minute read

Why Do Doctors Suggest Vitamins When TTC?

Breonna Slocum, MD

A person in a doctor's office.

Updated on Oct. 18, 2025

3 minute read

Is IVM Right for You?

Meggie Smith, MD

Legs of people running with one person's legs in focus.

Updated on Oct. 16, 2025

9 minute read

How Sodium Bicarbonate Can (Possibly) Help You Run Faster

Emily Oster, PhD

A baby being breastfed.

Updated on Oct. 16, 2025

3 minute read

What Is Cluster Feeding?

Emily Oster, PhD