What to Expect the First Year

In one sentence

The single most important claim of the book is that infant behavior is not random; it is a byproduct of physiological development, meaning that when you understand the why behind a baby's cries, sleep patterns, and motor skills, you can provide calmer, more effective care.

Why read this (and who it's for)

This book solves the "Panic of the Unknown." For new or expecting parents, the first year feels like a series of unpredictable crises—why is the baby crying? Why won't they sleep? Why are they suddenly so difficult?

This book is for the parent who wants to move from reactive parenting (responding to every cry with panic) to informed observation (recognizing that a cry might simply be a developmental milestone). After reading this, you will be able to identify specific milestones, distinguish between common ailments like colic and teething, and establish structured routines for feeding and sleep.

The big idea

The central thesis of Murkoff’s work is that infancy follows a biological blueprint. Every cry, every roll, and every sleepless night is a data point in a larger developmental map. The author argues that parental stress is often caused by a lack of information: when you don't know what "normal" looks like, every deviation feels like an emergency.

By providing a granular timeline of physical, emotional, and cognitive milestones, the book seeks to provide a "navigation system." If you know that a baby at four months is biologically programmed to begin rolling, you won't be frustrated when they refuse to sit still; you will recognize it as a period of intense neurological rewiring. The logic is simple: Knowledge reduces anxiety. When you understand the biology, you can provide the specific environment the baby needs to succeed in that specific stage.

Key ideas

Developmental Milestones as a Compass

What it is — These are the biological "deadlines" of infancy—specific physical, social, and cognitive skills that babies typically achieve at certain ages (e.g., rolling over, sitting up, first words). Why it matters — Knowing these milestones allows you to differentiate between a baby who is "behind" and a baby who is simply on their own unique timeline. It gives you a benchmark for when to seek professional medical advice versus when to simply provide more practice. In the book — Murkoff breaks these down by month, showing how motor skills (like grasping) transition into intentional actions (like reaching for a toy), providing a roadmap for what "normal" progress looks like.

Crying as Communication

What it is — Because infants lack the vocabulary to express needs, crying is their primary tool for communicating hunger, discomfort, fatigue, or frustration. Why it matters — If you view crying only as a "problem" to be silenced, you miss the information the baby is trying to give you. You must learn to become a translator of cries. In the book — The author distinguishes between different types of cries—such as the insistent cry of hunger vs. the weary cry of overstimulation—and teaches parents how to observe physical cues (like rooting or rubbing eyes) to identify the source.

The "Regression" Phenomenon (Growth Spurts)

What it is — These are periods where a baby’s behavior seems to "reset" or decline, often accompanied by increased fussiness and disrupted sleep. Why it matters — Parents often mistake these for behavioral problems or illnesses. In reality, these are "leaps" of progress where the brain is processing new information (like mobility or language). In the book — Murkoff explains that when a baby learns a major new skill (like crawling), their brain is so occupied with that neurological shift that they may become irritable and sleep poorly for several days.

Sleep Architecture

What it is — The transition from the erratic, frequent waking of a newborn to the consolidated nighttime sleep of an older infant. 9Why it matters — Understanding the circadian rhythm allows parents to build routines that work with biology rather than against it. It moves the goal from "perfect sleep" to "predictable patterns." In the book — The book describes how newborns cycle through sleep and wake states frequently, and explains how establishing a consistent bedtime routine helps signal to the brain that it is time to transition into deeper sleep cycles.

Feeding Dynamics (Breast vs. Bottle)

What it is — The nuanced differences in nutritional intake, frequency, and bonding between breastfeeding and bottle-feeding. Why it matters — Choosing a feeding method involves understanding both the biological needs of the baby and the logistical realities of the parent. In the book — Murkoff provides specific details on how much volume a baby typically consumes at different ages and identifies early hunger cues (like hand-to-mouth movements) to help parents feed before the baby becomes distressed by hunger.

Motor Skill Progression

What it is — The sequence of physical movements from reflexive actions (grasping, rooting) to intentional motor skills (reaching, crawling, standing). Why it matters — Each motor skill unlocks a new level of cognitive exploration. A baby who can roll over can see more of the room; a baby who can crawl can explore textures. In the book — The author details the specific months when these shifts occur—for example, noting that many babies begin to "pull to stand" around 9 months as they prepare for walking.

Frameworks & tools

The Feeding Cue Checklist

Use this to identify hunger before a baby begins to cry. If you see these cues, it is time to offer a feeding:

1. Rooting: Turning the head toward the breast/bottle when touched.
2. Hand-to-mouth: Sucking on fingers or fists.
3. Smacking of lips: A rhythmic sucking motion.
4. Increased alertness: Looking around and becoming more active.
5. The Cry: The final cue (should be avoided if possible).

The Sleep Routine Sequence

To signal to the infant's brain that sleep is imminent, establish a consistent 30–60 minute sequence of events:

1. Warm Bath/Wash: Physical relaxation and temperature change.
2. Massage/Skin-to-skin: Release of oxytocin and physical calming.
3. Reading/Soft Music: Cognitive winding down.
4. Consistent Bedtime: Placing the baby in the crib while they are drowsy but still slightly aware.

The Milestone Tracking Method

Instead of comparing your baby to every other baby you see, track these three specific categories:

1. Motor Skills: Can they roll? Sit? Crawl? Stand? Walk?
2. Social/Emotional: Do they smile socially? Show stranger anxiety?
3. Language: Are they cooing? Babbling? Using simple gestures (pointing)?

Memorable examples & stories

The "Leap" of Mobility

The book describes the period when a baby learns to roll over or crawl as a major neurological event. Because the brain is so focused on mastering this new physical coordination, the baby may become incredibly fussy and refuse to eat well for a few days. Lesson: Behavioral regression is often actually behavioral progression.

Distinguishing Colic from Teething

Many parents panic when a baby cries inconsolably, fearing a serious illness. Murkoff distinguishes between "colic" (irregular, severe crying in the first few months) and teething (irritability associated with gum discomfort). Lesson: Identify the physical symptoms (swollen gums vs. abdominal gas) to choose the right remedy.

The Social Smile

The transition from a reflexive smile (newborn) to a social smile (around 6–8 weeks) is highlighted as a major emotional milestone. It marks the beginning of true interpersonal communication. Lesson: Emotional milestones are just as important as physical ones for healthy development.

Key quotes

"Parenting is a journey, not a destination." (Paraphrased) Why it matters: Reminds parents that there is no "finished" state of parenting; it is a constant evolution.

"A baby's cry is their only way to tell you what they need." (Paraphrased) Why it matters: Shifts the parent's role from 'silencer' to 'interpreter'.

"Growth spurts are periods of intense neurological activity." (Paraphrased) Why it matters: Validates the parent's experience of a "difficult" baby as a biological process.

How to apply it

This week

• Observe Feeding Cues: For the next three feedings, do not wait for your baby to cry. Watch for rooting or hand-to-mouth movements and offer food/milk immediately upon seeing them.
• Identify One Milestone: Look up the motor skills for your baby's current age (e.g., "What can a 5-month-old do?"). Write down one thing they are currently trying to master.
• Establish a "Wind Down": Choose three specific activities (e.g., bath, book, lullaby) and perform them in the exact same order every night this week.

Ongoing

• The Interpreter Rule: When your baby cries, before reacting with stress, take 3 seconds to observe: Is it hunger? Fatigue? Or a "leap" of development?
• Track, Don't Compare: Keep a simple log of milestones reached, but stop comparing your baby’s progress to other infants in the same room.
• Routine Consistency: Maintain the sleep and feeding routines even on weekends to provide the biological predictability babies crave.

Common pitfalls

• The "Perfect" Schedule: A common mistake is trying to force a rigid schedule (e.g., exactly every 3 hours) when a baby's biology isn't ready for it. The book suggests routines over rigid schedules.
• Ignoring Parental Burnout: While the book focuses heavily on the baby, readers must remember that "expected" behavior can still be exhausting. If you are depleted, your ability to "interpret" cries diminishes.
• Over-medicalizing: Because the book provides a roadmap for what is normal, parents might sometimes overlook actual medical issues by assuming everything is just a "milestone." Always verify with a pediatrician if milestones are significantly missed.

Connects to

• The Whole-Brain Child (Daniel Siegel): Extends Murkoff's ideas by explaining the neurological reasons why babies act the way they do during growth spurts.
• Goodnight Sphere: Challenges some of the more traditional sleep advice in "What to Expect" by offering modern, evidence-based perspectives on infant sleep architecture.

If you remember only three things

• Biology is the Blueprint: Most behaviors are reactions to developmental stages, not behavioral problems.
• Interpret, Don't Just React: Crying is a data point; your job is to decode what that data means (hunger, tired, or learning).
• Growth Spurts = Progress: When things get harder, it’s usually because the baby is about to get much better at something.

Internalize it

• Reflection questions

  1. When my baby cries, do I react with frustration/panic, or do I pause to look for physical cues?
  2. What specific motor skill is my baby working on right now, and how can I provide a safe space for them to practice it?
  3. Am I trying to force a schedule that contradicts my baby's current biological needs (e.g., forcing sleep when they are in a growth spurt)?

• Flashcards Q: What is the primary purpose of an infant's cry? A: It is their only tool for communicating specific needs like hunger, pain, or fatigue.

Q: What is a "Growth Spurt" in terms of behavior? A: A period of intense neurological activity where the baby may become fussy because they are mastering a new skill (like rolling or crawling).

Q: What are three early feeding cues to watch for? A: Rooting, hand-to-mouth movements, and smacking of lips.

Q: How does "Sleep Architecture" change in the first year? A: It transitions from frequent waking/short cycles to consolidated nighttime sleep as the circadian rhythm develops.

Q: Why is it important to recognize developmental milestones? A: It allows parents to distinguish between normal progress and actual medical concerns, reducing unnecessary anxiety.

Fidelity note

I have a high level of confidence in this summary regarding the core developmental stages (motor skills, social smiles, growth spurts) and common infant ailments (colic, teething). These are foundational concepts in Murkoff's work. However, specific feeding volumes or "how-to" advice on bottle vs. breast may vary slightly depending on which edition of the book you are reading, as these details are often updated to reflect modern pediatric guidelines. Always verify medical concerns with a professional.