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A parent holding her baby in the background with a breast pump and a bunny toy in focus

Updated on May 2, 2025

3 minute read

Does Pumped Breast Milk Have Fewer Antibodies?

Emily Oster, PhD

A parent helping a baby to walk

Updated on May 2, 2025

7 minute read

When Do Babies Start Walking?

Emily Oster, PhD

Child building with colorful blocks.

Updated on Apr. 28, 2025

10 minute read

Why Are Autism Rates Going Up?

Emily Oster, PhD

A parent holding and stretching the baby's legs

Updated on Apr. 25, 2025

2 minute read

What Is the Data Behind Growth Charts?

Emily Oster, PhD

A dentist showing kid's dental x-ray to the parent and kid

Updated on Apr. 18, 2025

2 minute read

Does My Child Need Routine Dental X-Rays?

Emily Oster, PhD

An open oil bottle on a wooden plank surrounded by smaller planks and stones.

Updated on Apr. 14, 2025

9 minute read

Do Parasite Cleanses Work?

Emily Oster, PhD

A child playing with a bottle of pills

Updated on Apr. 11, 2025

2 minute read

Does Vitamin A Prevent Measles?

Emily Oster, PhD

A parent talking to a toddler by the sofa.

Updated on Mar. 21, 2025

3 minute read

How Should I Respond When I Don’t Understand My Toddler?

Emily Oster, PhD

Updated on Mar. 14, 2025

1 minute read

Should You Worry About Your Toddler’s Potbelly?

Emily Oster, PhD

Colorful candies.

Updated on Mar. 10, 2025

10 minute read

Should You Be Concerned About Food Dyes?

Emily Oster, PhD

A baby sleeping in a crib with pillow and teddy.

Updated on Mar. 11, 2025

2 minute read

Is It Okay for My Toddler to Use a Pillow?

Emily Oster, PhD

A baby sucking the thumb

Updated on Feb. 28, 2025

2 minute read

Does Thumb-Sucking Prevent Allergies?

Emily Oster, PhD

Papercut family in hands

Updated on Feb. 25, 2025

8 minute read

Navigating Directed Donor Relationships

Marea Goodman, LM, CPM

A parent breastfeeding her baby on a couch

Updated on Feb. 21, 2025

2 minute read

Do Prolactin Levels Matter for Breastfeeding Success?

Emily Oster, PhD

Baby lying down with a phone

Updated on Feb. 18, 2025

6 minute read

Should You Worry About Electromagnetic and Radio-Frequency Fields?

Emily Oster, PhD

A platter of animal and plant proteins

Updated on Feb. 10, 2025

9 minute read

Does Everyone Really Need to Eat More Protein?

Emily Oster, PhD