H.A.B.I.T.S.
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Timekeepers

Mastering the Body's Clock

Circadian rhythm controls everything: hormones, appetite, mood, focus. A consistent routine is the single most underrated parenting superpower.

Try today

10 minutes of morning sunlight — it sets your child's circadian clock for the whole day.

What to do at every age

0 to 1 year
  • Establish day and night rhythm from the second week
  • Morning light exposure sets the circadian clock for the entire day
  • Consistent feeding and sleep times create internal predictability
1 to 3 years
  • Same wake time every day within 30 minutes
  • Nap at consistent times — the body learns when to expect rest
  • Bedtime routine: bath, book, bed — same sequence every night
3 to 6 years
  • Visual schedule builds time awareness and reduces transitions tantrums
  • Morning sunlight within 30 minutes of waking
  • No screens 1 hour before bed — blue light disrupts melatonin
6 to 12 years
  • Teach time management using analog clocks
  • Homework at the same time daily builds automaticity
  • Weekend sleep-in should be no more than 1 hour later than weekdays
12 to 16 years
  • Teens need 8 to 10 hours of sleep — protect this aggressively
  • Discuss social jet lag and its effects on mood and focus
  • Phone charging should happen outside the bedroom