Topics
By topic
Browse the guide by topic — useful when you're searching for a specific subject across phases.
Core principles
Attachment and bonding — the foundation of everything
60 years of research converge on a simple finding: the best predictor of healthy development is a responsive and warm relationship with at least one adult
Vaccination — one of the largest public-health interventions in history
How they work, why so early, and how to read the scientific literature through the noise
Parents — mental health and adaptation
Babies don't need perfect mothers; they need regulated caregivers — and caregiver regulation is a measured clinical variable
Infant colic — what it is, what it isn't, and what has evidence
A benign, self-limiting syndrome that wrecks parents' sleep. Peak at 6-8 weeks, resolves around 3-4 months. Few interventions have evidence — but some do
Phase 7 — 24 to 36 months
Language and autonomy — the small citizen
Phase 6 — 12 to 24 months
Walking and naming the world — language explosion
The five core principles
The scientific foundation of every interaction with your baby
Phase 4 — 6 to 9 months
Solids introduction and mobility
Phase 2 — 1 to 3 months
Social awakening — the first smile
Phase 1 — 0 to 1 month
Newborn — adapting to the world
Neuroscience
Open this topic →Breastfeeding and nutrition
Starting solids — at 6 months, with calm and variety
BLW, traditional purees, or mixed — all have evidence. What matters more is variety, sensitivity to baby's cues, and exposing to allergens early
Pacifiers — what the evidence really shows
The protective window no one tells you about — and the limits that must be respected
Breastfeeding and nutrition
A learned skill, not a perfect instinct
Phase 1 — 0 to 1 month
Newborn — adapting to the world
Sleep
Sleep — the operating system of development
Why sleep matters, how much is normal, what is safe, and what evidence says about sleep methods
White noise for babies
What the evidence says — and the limits no one tells you
Pacifiers — what the evidence really shows
The protective window no one tells you about — and the limits that must be respected
Quick reference
Bedside tables to consult fast
Phase 1 — 0 to 1 month
Newborn — adapting to the world
Language
Language — built in turns, not volume
From perceiving sounds in the womb to the first 'why?' — what builds language and what gets in the way
Phase 7 — 24 to 36 months
Language and autonomy — the small citizen
Phase 6 — 12 to 24 months
Walking and naming the world — language explosion
Quick reference
Bedside tables to consult fast
Music, art, and intellectual stimulation
Separating commercial myth from solid evidence
Phase 5 — 9 to 12 months
Movement, first words, first gestures
Phase 3 — 3 to 6 months
Hands, voice, discovery — sensory explosion
Phase 2 — 1 to 3 months
Social awakening — the first smile
Motor development
Motor development — free movement, minimal equipment
The most important rule of motor development is the one no one sells — space, floor, and time
Phase 6 — 12 to 24 months
Walking and naming the world — language explosion
Quick reference
Bedside tables to consult fast
Phase 5 — 9 to 12 months
Movement, first words, first gestures
Phase 4 — 6 to 9 months
Solids introduction and mobility
Phase 3 — 3 to 6 months
Hands, voice, discovery — sensory explosion
Bones and height
Open this topic →Music and art
Phase 7 — 24 to 36 months
Language and autonomy — the small citizen
Music, art, and intellectual stimulation
Separating commercial myth from solid evidence
Parents — wellbeing and adaptation
Attachment and bonding — the foundation of everything
60 years of research converge on a simple finding: the best predictor of healthy development is a responsive and warm relationship with at least one adult
Parents — mental health and adaptation
Babies don't need perfect mothers; they need regulated caregivers — and caregiver regulation is a measured clinical variable
Infant colic — what it is, what it isn't, and what has evidence
A benign, self-limiting syndrome that wrecks parents' sleep. Peak at 6-8 weeks, resolves around 3-4 months. Few interventions have evidence — but some do
Vaccination
Open this topic →Warning signs
Vaccination — one of the largest public-health interventions in history
How they work, why so early, and how to read the scientific literature through the noise
Parents — mental health and adaptation
Babies don't need perfect mothers; they need regulated caregivers — and caregiver regulation is a measured clinical variable
Infant colic — what it is, what it isn't, and what has evidence
A benign, self-limiting syndrome that wrecks parents' sleep. Peak at 6-8 weeks, resolves around 3-4 months. Few interventions have evidence — but some do
Warning signs
When to see the pediatrician — quick reference by age