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A diet coke in a glass with ice cubes.

Updated on Dec. 4, 2025

7 minute read

How Bad Is Diet Coke for You, Really?

Emily Oster, PhD

In the news

Updated on Dec. 5, 2025

6 minute read

What’s Happening with the Hepatitis B Vaccine?

Emily Oster, PhD

A toddler trying to empty a jar.

Updated on Dec. 2, 2025

3 minute read

What Are Ways to Manage My Child Testing Limits?

Emily Oster, PhD

A couple having a pillow fight in bed.

Updated on Dec. 1, 2025

3 minute read

What’s the Data Behind Waiting a Year to Check Fertility?

Emily Oster, PhD

A person holding small male and female cut-outs in front of her stomach.

Updated on Dec. 1, 2025

3 minute read

Can I Choose the Sex of My Baby?

Breonna Slocum, MD

A person smoking outside.

Updated on Dec. 2, 2025

8 minute read

Is Your Substance Use Affecting Your Sperm?

Emily Oster, PhD

A robot puppy.
In the news

Updated on Nov. 26, 2025

9 minute read

Are AI Toys Safe for Children?

Dana L. Suskind, MD

A toddler napping.

Updated on Nov. 26, 2025

1 minute read

How Do I Prepare for Fewer Naps?

Emily Oster, PhD

A purple and an yellow gun.

Updated on Nov. 26, 2025

7 minute read

What Parents Should Know About Gun Violence

Megan Ranney, MD, MPH

A nurse checking the blood pressure of a pregnant person.

Updated on Nov. 24, 2025

8 minute read

All About Preeclampsia

Emily Oster, PhD

A pregnant person wearing a mask.

Updated on Nov. 20, 2025

8 minute read

Should You Be Concerned About COVID in Pregnancy?

Emily Oster, PhD

An adorable bald baby.

Updated on Nov. 19, 2025

2 minute read

When Will My Baby’s Hair Start Growing?

Emily Oster, PhD

A father holding the hands of his son.

Updated on Nov. 17, 2025

4 minute read

How Much Does Having an Absent Parent Affect Children?

Karey O’Hara

A person looking at a pregnancy test.

Updated on Nov. 14, 2025

2 minute read

How Common Are Recurring Miscarriages?

Emily Oster, PhD

Sperm illustration.

Updated on Nov. 14, 2025

2 minute read

How Likely Is CMV Transmission From Donor Sperm?

Emily Oster, PhD

A baby holding a parent's finger.

Updated on Nov. 13, 2025

8 minute read

The State of Parental Leave

Emily Oster, PhD