Development & Play · 4–6 months
When Do Babies Sit Up? The Typical Timeline and How to Help
Most babies sit up on their own around 6 months, and healthy babies start anywhere from about 4 to 9 months (WHO).…
Your baby, by age
6–9 months
Sitting, first foods, allergens, peekaboo, and separation anxiety.
Development & play
Development & Play · 4–6 months
Reading to Your Baby: When to Start, What to Read, and Why It Matters
Start reading to your baby from birth: the AAP encourages shared reading from day one, a few minutes at a time, ideally…
Development & Play · 4–6 months
When Do Babies Start Talking? Language Milestones and How to Help
Most babies coo by 4 months, babble "mamamama" by 9 months, and call a parent "mama" or "dada" by 12 months. By…
Sleep
Sleep · 4–6 months
Is It Safe for a Baby to Sleep in a Swing, Car Seat, or Bouncer?
Not for routine sleep. The AAP, NIH, and CPSC say swings, bouncers, rockers, and car seats outside the car aren't safe sleep…
Sleep · 4–6 months
When Can a Baby Sleep With a Blanket, Pillow, or Stuffed Animal?
Keep blankets, pillows, and stuffed animals out of the crib until at least 12 months. After that, a special blanket or soft…
Sleep · 4–6 months
Wake Windows by Age: What the Research Actually Says
Wake windows are popular, but no controlled study has tested them, and charts disagree: newborn windows range from 30 to 90 minutes.…
Feeding
Feeding · 4–6 months
Baby Constipation After Starting Solids: Signs and What Helps
Constipation is common when babies start solids and means hard, pebble-like stools that hurt to pass, not just fewer poops. Puréed prunes…
Feeding · 4–6 months
Iron-Rich First Foods for Babies: What to Offer from 6 Months
From about 6 months, offer an iron-rich food at every meal: meat, poultry, fish, well-cooked eggs, iron-fortified infant cereal, lentils, beans, or…
Feeding · 4–6 months
Baby-Led Weaning vs. Purées: What the Research Actually Says
Both work. In the best trial so far, modified baby-led weaning and spoon-fed purées had the same choking rates, iron levels, and…
Everything for this age
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Button Batteries and Magnets: The Hidden Dangers for Babies and Toddlers
If your baby may have swallowed a button battery, go to the ER right away and call the National Battery…
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When Do Babies Crawl? And Why the CDC Dropped Crawling as a Milestone
Most babies who crawl start between 7 and 10 months (AAP), but the healthy range runs from about 5 to…
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When Can a Baby Sleep With a Blanket, Pillow, or Stuffed Animal?
Keep blankets, pillows, and stuffed animals out of the crib until at least 12 months. After that, a special blanket…
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When Can Babies Eat Peanut Butter? How to Introduce Peanut Safely
Most babies can have peanut around 6 months, after a few other first foods, and never before 4 months. Serve…
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Wake Windows by Age: What the Research Actually Says
Wake windows are popular, but no controlled study has tested them, and charts disagree: newborn windows range from 30 to…
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Screen Time for Babies and Toddlers: What the AAP and WHO Recommend
Under 2, the CDC says no screens except video calls with loved ones, and the WHO says none under 1.…
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Gagging vs. Choking: How to Tell the Difference When Starting Solids
Gagging is loud: coughing, sputtering, watery eyes. It’s a normal reflex while babies learn to eat, so stay calm and…
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Can Babies Have Honey? Why It Must Wait Until 12 Months
No. Babies shouldn’t have honey in any form, including in baked goods or on a pacifier, until after their first…
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How Much Sleep Does a Baby Need? Sleep Chart by Age (0–3 Years)
Newborns usually need 14–17 hours of sleep a day, babies 4–12 months 12–16 hours, and toddlers 1–2 years 11–14 hours,…
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Baby Milestones by Month: The CDC’s 2022 Checklist, Explained
The CDC’s milestone checklists run from 2 months to 5 years. Since 2022, each milestone is something at least 75%…