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A person doing research and looking stressed.

Updated on Apr. 7, 2025

9 minute read

When “It Can’t Hurt” Actually Can

Emily Oster, PhD

A newborn on a weighing scale

Updated on Apr. 4, 2025

3 minute read

When Should Infants Get Back to Their Birth Weight?

Emily Oster, PhD

A baby wearing glasses and sleeping on top of a moon shaped pillow.

Updated on Mar. 28, 2025

2 minute read

Should You Also Sleep Train for Naps?

Emily Oster, PhD

A person mixing formula in a bottle

Updated on Apr. 28, 2025

7 minute read

What Is Going On with Heavy Metals in Formula?

Emily Oster, PhD

Young baby getting vaccine from nurse, while mother holds her.

Updated on Jun. 4, 2025

9 minute read

Measles 101

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

Baby on parent's lap on plane

Updated on Jun. 4, 2025

2 minute read

Is It Safe to Fly with My Baby During a Measles Outbreak?

Emily Oster, PhD

Pediatrician giving a baby a vaccination.

Updated on Feb. 28, 2025

3 minute read

Can I Vaccinate My Baby for Measles Early?

Emily Oster, PhD

A baby sucking the thumb

Updated on Feb. 28, 2025

2 minute read

Does Thumb-Sucking Prevent Allergies?

Emily Oster, PhD

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

ParentData podcast art

Updated on Apr. 29, 2025

14 minute read

All About Vaccines

Emily Oster, PhD

An egg with a bandaid being injected

Updated on Feb. 14, 2025

2 minute read

Do Vaccines Contain Eggs?

Emily Oster, PhD

A parent holding a baby while another is showing a flash card

Updated on Feb. 12, 2025

8 minute read

Early Brain Development in Babies

Emily Oster, PhD

Changing baby's diaper

Updated on Apr. 1, 2025

2 minute read

How Do I Know What “Normal” Poop Looks Like?

Emily Oster, PhD

A kid getting a vaccine shot

Updated on Mar. 17, 2025

16 minute read

How Can You Know If Vaccines Are Safe?

Emily Oster, PhD