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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 Aug. 8, 2025

16 minute read

How Can You Know If Vaccines Are Safe?

Emily Oster, PhD

A parent and a baby sitting on a rug and reading

Updated on Feb. 3, 2025

2 minute read

Should You Buy Children’s Books in Another Language?

Emily Oster, PhD

Few perfume bottles in a pink background

Updated on Jan. 31, 2025

2 minute read

Is It Unsafe to Wear Perfume Around a Baby?

Emily Oster, PhD

A saline spray and tissues in a colorful background

Updated on Jan. 31, 2025

2 minute read

Is Saline Nasal Spray Safe for Babies?

Emily Oster, PhD

A person holding a chicken in a lab wearing gloves

Updated on Jan. 29, 2025

8 minute read

What You Need to Know About Bird Flu

Emily Oster, PhD

A parent breastfeeding a baby

Updated on Jan. 31, 2025

9 minute read

The Data Behind Breast Milk Supply

Emily Oster, PhD

A baby being tucked in a car seat

Updated on Jan. 10, 2025

3 minute read

Is It Unsafe to Wear a Coat in a Car Seat?

Emily Oster, PhD

A kid getting a bandaid after a vaccine shot

Updated on Sep. 5, 2025

17 minute read

Your Guide to Childhood Vaccinations Before Age 2

Emily Oster, PhD

An infant in a car seat

Updated on Jan. 9, 2025

6 minute read

Your Guide to Infant Car Seats

Emily Oster, PhD

A baby lying on tummy next to a teddy

Updated on Jan. 31, 2025

2 minute read

Are Loveys Bacteria Breeding Grounds?

Emily Oster, PhD

Two toy cars going on a race mat with three kids in the blurred background.

Updated on Dec. 16, 2024

9 minute read

Why Universal Pre-K Means Parents Make More Money

Emily Oster, PhD

Young toddler eating fruit puree in a pouch.

Updated on May 30, 2025

2 minute read

Is It Bad to Give My Kid Pouches?

Emily Oster, PhD

A toddler is seen sitting on the lap of a parent. The child is blowing their nose into a tissue held by the parent.

Updated on Jan. 31, 2025

10 minute read

What Things Can I Do with My Baby?

Emily Oster, PhD

Breast pump near a window

Updated on Jan. 31, 2025

2 minute read

Does Quality of Pumping Space Impact Breastfeeding Length?

Emily Oster, PhD