The Scientification of Love

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Overview

What this book is about

The Scientification of Love (Free Association Books, 1999; revised edition 2011) is Odent's attempt to place what humans call "love" — in all its forms — on a rigorous biological and neurochemical foundation. The book argues that love is not a metaphysical or cultural construct but a biological capacity whose neurological basis is the oxytocin system, whose development is programmed during the primal period (conception through the first year of life), and whose expression is shaped by the hormonal events surrounding birth.

The title is deliberately provocative. Odent uses "scientification" rather than "science" to signal that this is an ongoing process — science is just beginning to catch up with what traditional cultures and contemplative traditions have always known about the central role of love in human life. The book draws on comparative ethology (how other species establish bonds), primate research, neuroendocrinology, and Odent's own Primal Health Research database to argue that:

1. The capacity to love is not simply a given — it is developed (or not) during critical prenatal and perinatal windows. 2. The hormonal cascade of birth is the most concentrated dose of oxytocin the human body ever produces — and this peak is the foundation of maternal-infant bonding, the infant's oxytocin programming, and the mother's capacity for love going forward. 3. Modern birth practices that eliminate or suppress this hormonal peak are literally interfering with the biological basis of love. 4. The same neurochemical system governs maternal love, romantic love, sexual love, religious ecstasy, and the "love of nature" — they are not metaphorically similar but neurologically identical in their substrate.

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Key Ideas

The core frameworks and findings

Love has a biological substrate: the oxytocin system

Every form of love — maternal, romantic, sexual, spiritual, environmental — is mediated by the same ancient neurochemical system. Oxytocin, released in pulses during labour, birth, breastfeeding, skin contact, and sexual arousal, is the physiological molecule of love.

The capacity to love is programmed during the primal period

From conception through the first year of life, the developing brain is calibrated for love and bonding based on the hormonal environment it experiences. The birth hormonal peak is the single most important programming event.

Birth is the template of all subsequent love

The massive oxytocin surge at birth — combined with endorphins, prolactin, and adrenaline — creates the neurological template that governs how the individual will subsequently experience and express love. Undisturbed birth provides the maximum oxytocin peak; medicalised birth suppresses or eliminates it.

Learning from other species about bonding

Odent draws on Konrad Lorenz's imprinting in birds, bonding studies in sheep and goats (severing maternal-infant contact at birth reliably produces rejecting behaviour), and primate attachment research to establish that the post-birth hormonal window is universal across mammals.

Comparative cultures: how birth practices shape love

Cross-cultural comparison reveals that cultures with the most violently medicated and managed births also show the highest rates of violence, social disconnection, and the weakest capacity for empathy. This correlation (not proof of causation, but hypothesis-generating) is central to Odent's public health argument.

Birth, sexuality, and breastfeeding share the same physiology

Labour, orgasm, and the let-down reflex in breastfeeding all involve pulsatile oxytocin release, altered consciousness, reduced neocortical activity, and the same neural reward pathways. They are, physiologically, variations on a single theme. The woman who experiences an undisturbed birth is not just giving birth — she is having the most intense oxytocin experience of her life.

Romantic love: the primal roots

Romantic love is the adult activation of the same oxytocin programming laid down at birth and through early maternal attachment. Its neurological substrates — the reward circuits, the oxytocin and vasopressin systems — are the same ones that bind mother to infant.

Religious and spiritual ecstasy: love at the extremes

Odent includes mystical states, religious ecstasy, and experiences of unity with nature or God within the spectrum of oxytocin-mediated states. The Sufi mystic and the labouring woman accessing the fetus ejection reflex are both experiencing extreme reductions of neocortical activity and extreme oxytocin/endorphin states.

The primal health research database

Odent's Primal Health Research Centre has assembled a database of studies correlating events during the primal period (birth type, breastfeeding duration, early skin contact) with long-term outcomes including criminality, autism, eating disorders, immune disease, and social behaviour. The data consistently points to the primal period as the most critical programming window.

"Who's my mother?"

A chapter on the mammalian question of early identification — how the newborn learns who its mother is through hormonal and olfactory cues during the sensitive period immediately after birth. Disruption of this window (by taking the baby away, washing, wrapping, or delaying skin contact) alters this imprinting process.

Love of animals and nature as primal love extensions

The capacity to feel connected to animals, plants, and the natural world is argued to share the same neurological substrate as interpersonal love. Early disruption of the primal period correlates with reduced environmental empathy.

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Chapter by chapter — click to expand

§ Prehistory of the Scientification of Love ▾

Before modern science: what traditional cultures and contemplative traditions knew about love
How religion and philosophy addressed love that science could not yet explain

§ Learning from Ducklings, Sheep, and Monkeys ▾

Konrad Lorenz: imprinting and the critical period
Sheep and goat maternal bonding: what severing post-birth contact reveals
Harlow's monkeys: attachment theory from primates

§ Love Hormones and Childbirth ▾

The oxytocin cascade at birth: the peak that programs everything
Endorphins, prolactin, adrenaline: the full hormonal symphony of birth
What undisturbed birth produces; what medicalised birth suppresses

§ Primal Health Research: A New Scientific Discipline ▾

The Primal Health Research Centre database
Methodology: correlating primal period events with adult health outcomes
Key findings summarised

§ Comparing Cultures ▾

How birth practices correlate with societal levels of violence, cooperation, and love
Cross-cultural evidence: from the most undisturbed to the most managed birth cultures

§ Birth Reborn ▾

Odent's clinical experience at Pithiviers: what undisturbed birth looks like
The moment when a woman "goes to another planet"
What changed in his understanding of his role as birth attendant

§ Sexuality ▾

Orgasm as an oxytocin state: the neurological overlap with birth
How sexual function is influenced by primal period programming

§ Sexual Attractiveness ▾

The primal dimensions of attraction: olfactory, hormonal, imprinting-based cues

§ Romantic Love ▾

The neural substrates of falling in love: dopamine, oxytocin, vasopressin
Why romantic love feels like a peak state — it is one

§ Who's My Mother? ▾

The sensitive period immediately after birth: olfactory and hormonal mother-infant identification
What disrupts this window and what are the consequences

§ Love of Animals ▾

How the capacity for interspecies empathy extends from the same oxytocin system
Why children who were breastfed longer show greater empathy for animals

§ Orgasmic States and Ecstatic States ▾

The continuum from labour to birth to orgasm to mystical states
Ecstatic birth: documented cases of pleasurable, even orgasmic labour and birth
What physiological conditions produce ecstatic birth

§ Love at the Molecular Level ▾

The biochemistry of love summarised
Oxytocin receptor density, gene expression, and how the primal period sets lifelong levels
Vasopressin and the male bonding system

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Practical Takeaways

What to actually do with this

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The hormonal peak at birth is a one-time event that programs the child's capacity for love and bonding

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Anything that prevents this peak (epidurals, synthetic oxytocin, immediate cord clamping, early separation, bright lights, observation) reduces the programming effect

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Skin-to-skin contact in the first hour is the critical window for this bonding programming

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Delayed bathing, delayed cord clamping, delayed weighing — all protect the sensitive period

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The father's love is also oxytocin-mediated — his own programming during the birth contributes to his capacity for paternal bonding

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The same environment that protects the mother's oxytocin peak also protects the father's

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Each breastfeeding session is an oxytocin event — it continues the programming that birth began

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The longer breastfeeding continues, the more oxytocin programming is accumulated in both mother and child

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A surgical birth significantly alters (but does not eliminate) the birth hormonal peak

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Skin-to-skin contact, breastfeeding initiation as early as possible, and extended early contact can partially compensate for the altered hormonal environment

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The next birth, if undisturbed, will provide the full hormonal experience that the first birth did not

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The Scientification of Love

Overview

Key Ideas

Contents

Practical Takeaways

See Also