parent data
About us
FAQs
Contact us
Ask Petey
Log in Subscribe

All Articles

Sort by order
  • Relevance
  • Newest to Oldest
  • Oldest to Newest
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

A plastic wind-up lady bug baby toy is seen on a red background

Nov. 9, 2023

7 minute read

Baby Gear and the Environment

Tatiana Schlossberg

Poison ivy plants are pictured growing on the grown.

Updated on Mar. 4, 2025

2 minute read

Can You Immunize Yourself Against Poison Ivy?

Emily Oster, PhD

A parent holds a baby while a doctor administers a vaccine.

Updated on Jan. 20, 2025

2 minute read

Why Does Giving My Baby the COVID Shot Feel So Scary?

Emily Oster, PhD

A picky-eater child holds up a stem of broccoli and frowns.

Nov. 7, 2023

4 minute read

Will My Picky Eater Become a Picky Adult?

Emily Oster, PhD

Powdered formula in a measuring spoon, next to a baby bottle.

Updated on Oct. 10, 2025

2 minute read

Is It Safe to Add Rice Cereal to Baby Formula?

Emily Oster, PhD

A doctor measures the fundal height on a pregnant person.

Updated on Oct. 16, 2025

9 minute read

How Big Will My Baby Be?

Emily Oster, PhD

ParentData podcast cover art

Nov. 2, 2023

14 minute read

Let’s Talk Puberty

Emily Oster, PhD

Three pre-teen friends stand next to each other in colorful pajamas and fuzzy slippers at a slumber party.

Nov. 1, 2023

2 minute read

Are Kids Really Starting Their Periods Younger?

Emily Oster, PhD

A baby smiles into the review mirror of a car.

Nov. 1, 2023

2 minute read

Should I Get a Car Mirror to Monitor My Baby?

Emily Oster, PhD

A baby smiles while a doctor listens to their lungs with a stethoscope.

Updated on Dec. 12, 2024

3 minute read

What Are the Risks from Steroid Injections for Fetal Lung Maturity?

Emily Oster, PhD

A baby sits on a doctors table and looks concerned while receiving a vaccination from a doctor.

Updated on Mar. 24, 2025

2 minute read

Should I Give My Baby Tylenol After a Vaccine?

Emily Oster, PhD

A person shopping in a grocery store adds a bottle of oil to their shopping bag.
In the news

Updated on Oct. 1, 2025

9 minute read

What Are Seed Oils, and Are They Bad For You?

Emily Oster, PhD

Four tablespoons of various kinds of salt are pictured on a marble background.

Oct. 25, 2023

2 minute read

How Much Sodium Do I Need?

Emily Oster, PhD

An over the shoulder shot of a parent breastfeeding a baby.

Oct. 25, 2023

4 minute read

Does Breastfeeding Increase the Risk of Colorectal Cancer?

Emily Oster, PhD

A pregnant person and spouse kiss in bed.

Oct. 25, 2023

3 minute read

Do I Really Need Pelvic Rest With a Placenta Previa?

Emily Oster, PhD