Announcing BabyData, an 18-month, age-specific newsletter to guide you through the first year and a half of your baby's life.
parent data
About us
FAQs
Contact us
Saved articles
Ask Petey
Log in Subscribe

All Articles

Sort by order
  • Relevance
  • Newest to Oldest
  • Oldest to Newest
A small child smiles and holds up bubble-covered hands while washing their hands.

Updated on Oct. 14, 2025

3 minute read

How Often Should I Make My Kids Wash Their Hands?

Emily Oster, PhD

A parent sitting with two children on a couch and teaching them with a book.

Updated on Oct. 10, 2025

2 minute read

When Should Kids Learn to Read?

Emily Oster, PhD

Pills

Updated on Sep. 25, 2025

3 minute read

Can Leucovorin Treat Autism?

Emily Oster, PhD

Baby lying down with a phone

Updated on Sep. 23, 2025

6 minute read

Should You Worry About Electromagnetic and Radio-Frequency Fields?

Emily Oster, PhD

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

Updated on Sep. 23, 2025

2 minute read

Does My Child Need Routine Dental X-Rays?

Emily Oster, PhD

A parent looks worried as she talks to a doctor on the phone while placing her palm on the forehead of a sick child.

Updated on Sep. 22, 2025

4 minute read

How Often Do Kids Get Sick?

Emily Oster, PhD

Syringe and vaccine vial on a dark background
In the news

Updated on Sep. 20, 2025

7 minute read

What’s Happening to the MMRV, Hepatitis B, and COVID Vaccines?

Emily Oster, PhD

Kids reading in a classroom.

Updated on Sep. 19, 2025

8 minute read

Do Classroom Rewards Improve Behavior?

Emily Oster, PhD

A teacher teaching kindergarten kids in a classroom.

Updated on Sep. 16, 2025

9 minute read

Has Kindergarten Gotten More Academic?

Emily Oster, PhD

Vaccine being loaded in the syringe.
In the news

Updated on Sep. 16, 2025

6 minute read

Fact Check: Vaccine Studies

Emily Oster, PhD

A baby being tested for fever

Updated on Sep. 15, 2025

9 minute read

Everything You Need to Know About Febrile Seizures

Emily Oster, PhD

Parent and a child brushing teeth

Updated on Sep. 11, 2025

2 minute read

Will a Child Act More Like the Parent They Look Like?

Emily Oster, PhD

kid taking bath in the bath tub

Updated on Sep. 3, 2025

7 minute read

A Guide to Toddler Bath Time

Emily Oster, PhD

A happy family with a newborn.

Updated on Aug. 21, 2025

8 minute read

Does Giving Families Money Improve Child Outcomes?

Emily Oster, PhD

closeup of a donut

Updated on Aug. 12, 2025

10 minute read

What’s the Data on Ultra-Processed Foods?

Emily Oster, PhD

Three kids running and leaping outside.

Updated on Aug. 8, 2025

9 minute read

What’s Behind the Decline in Youth Mental Health?

Emily Oster, PhD