Is Antiperspirant Safe During Pregnancy?

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Q&A on aluminum in deodorant

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How Much Water Should I Drink While Pregnant?

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Q&A on pregnancy hydration

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Emily Oster explains how much water you actually need during pregnancy, what the evidence says about hydration and risks, and why drinking to thirst is usually enough — with one key exception late in pregnancy.

Why You Should Surface Family Conflicts on Purpose

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A strategy for getting on the same page

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Emily Oster explains why intentionally surfacing family conflicts can reduce parenting frustration, improve communication with your partner, and help households get on the same page.

Does Melatonin Work for Kids’ Sleep?

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The evidence for jet lag and sleep difficulties

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Should I Give My Child Melatonin to Help Them Sleep?

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Should I Give My Child Melatonin to Help Them Sleep?

The evidence for jet lag and sleep difficulties

Is Sleep Training Bad?

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What the data says about letting your baby “cry it out”

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Is Sleep Training Bad?

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Is Sleep Training Bad?

Emily Oster reviews the evidence on sleep training, including “cry it out,” and explains what the data actually shows about infant sleep, attachment, and long-term outcomes for babies and parents.

What Should I Do When My Toddler Bites?

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Q&A on evidence-based approaches

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What to Do If Your Toddler Bites

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What to Do If Your Toddler Bites

Cannabis in Pregnancy

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Making sense of the data on birth and child outcomes

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Cannabis in Pregnancy

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Cannabis in Pregnancy

Why Water Safety Is So Important

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Risks of drowning and what to do to prepare

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Why Water Safety Is So Important

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Why Water Safety Is So Important

Forever Chemicals in Breast Milk

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A new study raised alarm—but should you worry?

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