Screens, Sugar & Play
The habits you set before age two are some of the easiest parenting wins there are. Here are three big ones, with the facts to back them up.
- Under 18 months: no screens except video chat with people who love them.
- No added sugar through age 4, and juice can wait too.
- The best toys are your face, your voice, and the floor.
- First tooth: brush twice daily; dentist by the first birthday.
Screen time
The baseline, by age. Note that the AAP refreshed its whole media policy in early 2026; the emphasis moved from pure stopwatch limits to quality, context, and what screens crowd out: AAP 2026
| Age | Guidance |
|---|---|
| Under 18 months | No screens, except live video chat with people who love them (grandparent calls get a pass). Babies learn from faces and the real world, and video is neither one. AAP |
| 18–24 months | If you introduce anything: brief, high-quality (PBS Kids-grade), and watched with you, never solo. |
| 2–5 years | About 1 hour/day of high-quality programming, co-viewed and talked about. (WHO gives the same number and adds "less is better.") WHO |
- Background TV counts against you even when nobody's "watching." It's linked to lower language and social-emotional skills because it displaces talking and play. AAP
- Don't make the screen the pacifier. The AAP's "Calm" principle: a child soothed only by a screen never builds their own self-soothing muscles.
- Your phone is a screen habit too. The AAP now says it to parents directly: put your own phone down at meals and bedtime, because kids copy what we do. AAP
- Make it a plan instead of a nightly argument: the AAP's free Family Media Plan tool sets your household rules once. AAP
Sugar
The guidance got stricter in 2026. The new Dietary Guidelines for Americans (2025–2030, released January 2026) now say to avoid added sugars entirely through age 4, which extends the old under-2 rule, and for ages 5–10 they go further than before too: "no amount of added sugars is recommended." The American Heart Association's older, more permissive ceiling of under 25 g/day (~6 tsp) for ages 2–18, and none before 2, now reads as the upper bound rather than the target. DGA 2025–2030 AHA
- Juice: none before 12 months, and 4–6 oz/day max for ages 1–6. Whole fruit beats juice every time ("no nutritional benefits over whole fruit" is the AAP's own phrasing). AAP
- What to pour instead: breast milk/formula to 12 months → whole milk and water at 12–24 months → low-fat milk and water after. Flavored milks, toddler milks, and anything with a cartoon on the label promising "growth": skip. AAP
- Read the label line "Includes X g Added Sugars." That's the number to watch, since "Total Sugars" also counts the natural sugars in milk and fruit, and those don't count against you. Baby-aisle snacks are routinely sugar delivery vehicles; yogurt is the classic ambush. FDA
- Why bother this early: taste preferences set now. A palate that never learns to expect dessert-sweet yogurt doesn't fight you about it at four. (And honey stays banned until 12 months for a different reason: botulism. AAP)
Activities: the free stuff is the good stuff
Tummy time
Start from the first days home: awake, supervised, on a firm surface. Do 2–5 minutes a few times a day, build to 15–30 minutes daily by 2 months, then an hour a day by 6 months (Pathways.org's progression; WHO's floor is 30+ minutes daily). It builds the neck, core, and shoulder strength behind rolling, sitting, and crawling, and it prevents flat head spots. Baby hates it? Start on your chest; that counts. Pathways AAP WHO
The container caution: car seats, swings, and bouncers are fine in moderation, but a baby parked in "containers" all day loses floor time and can develop flat spots and tight neck muscles. WHO's rule of thumb: not restrained more than an hour at a stretch. Floor beats gadget. Pathways WHO
Serve and return: the actual brain curriculum
Harvard's Center on the Developing Child calls the back-and-forth between baby and adult (they babble, you answer; they point, you name it) the interaction that shapes brain architecture. It costs nothing and outperforms every educational product ever sold. Narrate your day, copy their sounds back, sing off-key with confidence. Harvard
And read from birth. The AAP's official policy: shared reading starting at birth, print books preferred. Your voice on your lap is the product. AAP
Play by age (attributed to Zero to Three's activity library)
| Age | Greatest hits |
|---|---|
| 0–3 mo | Face time in the quiet-alert window, high-contrast things to stare at, mirror play, "Sooo big!" arm stretches |
| 3–6 mo | Tummy-time with a scarf to grab, textured things to squeeze, finding where the bell sound came from |
| 6–9 mo | Peek-a-boo (now with suspense!), banging two things together, texture books, family-photo naming |
| 9–12 mo | Rolling a ball to chase, hiding a toy under a cloth, dropping blocks in a cup (repeat 4,000 times) |
Milestone check-ins
Wondering if the play is "working" is normal; the milestones table and the free CDC Milestone Tracker app are the reliable answer, and Pathways.org has videos of what each milestone looks like in a real baby.
Teeth (they're coming)
- First tooth usually lands 6–12 months. Teething causes drool, chewing, and crankiness — not true fever. A temperature of 100.4+ means look for illness. AAP
- Soothe with cold teething rings and gum massage. Never benzocaine gels or amber necklaces (see the never list).
- Brush twice daily from tooth #1 with a rice-grain smear of fluoride toothpaste, and book the first dental visit by the first birthday. AAP ADA
- Pacifier vs. thumb: both are normal self-soothing, and neither is a dental problem until well past age 2. Pacifiers at sleep even reduce SIDS risk in year one. AAP