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Kids multivitamins are piled on a pink background.

Updated on Mar. 23, 2026

2 minute read

Does My Picky Eater Need Multivitamins?

Emily Oster, PhD

ParentData village illustration of the confusing postpartum landscape

Updated on Mar. 23, 2026

4 minute read

Our Top Reader Comments on Postpartum

Team ParentData

Updated on Mar. 23, 2026

2 minute read

Should I Be Worried That My Period Has Not Returned After Weaning?

Gillian Goddard, MD

A glucose monitor and a glp 1 syringe.
In the news

Updated on Mar. 19, 2026

9 minute read

All About GLP-1s

Emily Oster, PhD

A mom working on the laptop with two children.

Updated on Mar. 20, 2026

6 minute read

Does Working From Home Lead to More Babies?

Emily Oster, PhD

grumpy child in bed with princess crown

Updated on Mar. 19, 2026

9 minute read

Are Disney Princesses Ruining Your Daughter?

Emily Oster, PhD

child sleeping on a couch

Updated on Mar. 17, 2026

9 minute read

Sleep Survey Results: The Naps

Emily Oster, PhD

Updated on Mar. 17, 2026

2 minute read

What Causes Labor to Start?

Emily Oster, PhD

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

Updated on Mar. 17, 2026

8 minute read

Early Brain Development in Babies

Emily Oster, PhD

baby taking milk from feeder

Updated on Mar. 17, 2026

2 minute read

What Happens to Milk Supply When You Stop Nighttime Feeding?

Emily Oster, PhD

A baby on a blue sheet wears a pretend parachute and skydiving goggles.

Updated on Mar. 17, 2026

2 minute read

Is High-Altitude Travel Dangerous for a Baby?

Emily Oster, PhD

In the news

Updated on Mar. 17, 2026

6 minute read

What’s Happening with the Hepatitis B Vaccine?

Emily Oster, PhD

A baby about to take a vaccine shot.
In the news

Updated on Mar. 17, 2026

8 minute read

What Changed in the Childhood Vaccine Schedule?

Emily Oster, PhD

A ripe, butt-shaped peach.

Updated on Mar. 17, 2026

10 minute read

Why You Should Consider Screening for Colon Cancer

Emily Oster, PhD

A smiling baby sitting on a floor wearing a helmet

Updated on Mar. 16, 2026

8 minute read

Helmets for Shaping Your Baby’s Head

Emily Oster, PhD

multiple dices placed on a pink background

Updated on Mar. 16, 2026

9 minute read

Understanding Risk, Living With Uncertainty

Emily Oster, PhD