Oxytocin
Oxytocin is a peptide acting as both hormone and neurotransmitter, central to social bonding, trust, and attachment. Released during childbirth, breastfeeding, touch, and intimacy, it promotes maternal behavior, pair bonding, and empathy, and buffers stress. Beyond social behavior it drives uterine contractions and milk ejection, tying reproductive physiology to social connection.
Too little may be associated with
Social difficulties (complex relationship)
Too much may be associated with
Effects vary depending on context
Informational only — not medical advice.
Stimuli that influence it
Functions
- Communication
- Empathy
- Facial Recognition
- Hormone Regulation
- Moral Reasoning
- Sexual Behavior
- Social Cognition
- Theory of Mind
Substances
- MDMA (↑)(HARMFUL)
Behaviors
- Acts of kindness (↑)
- Breastfeeding (↑)
- Eye contact (↑)
- Helping others (↑)
- Hugging (↑)
- Kissing (↑)
- Laughter with friends (↑)
- Massage (↑)
- Petting a dog or cat (↑)
- Playing music (↑)
- Pornography (↑)
- Sex (↑)
- Skin-to-skin contact (↑)
- Social bonding (↑)
- Volunteering (↑)
Books (35)
Affective Neuroscience
Against empathy
Are We Smart Enough to Know How Smart Animals Are?
Aware
Behave: The Biology of Humans at Our Best and Worst
Brainstorm
Conscience: The Origins of Moral Intuition
Emotions, imagination, and moral reasoning
Empathy
Facial Recognition
Facial Recognition Technology
Gene regulation by steroid hormones
Guitar Zero: The Science of Becoming Musical at Any Age
Mama's Last Hug
Mindsight
Moral reasoning
Mother Nature
Mothers and Others
Musicophilia: Tales of Music and the Brain
Nonviolent Communication
Sexual Behavior in the Human Female
Podcasts
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- Hidden Brain
Shankar Vedantam on the unconscious patterns that drive behavior.
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- The Science of Happiness
Research-tested strategies for a happier, more meaningful life.
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Research (117)
- Amphetamine Toxicity Vasan et al. (2026) PubMed ↗
- Exercise biomarkers Siebers et al. (2026) Full text ↗ PubMed ↗
- Hypothalamic Dysfunction Casipit et al. (2026) PubMed ↗
- Oxytocin Froemke et al. (2025) Full text ↗ PubMed ↗
- The molecular basis of music-induced neuroplasticity in humans: A systematic review Kunikullaya et al. (2025) Full text ↗ PubMed ↗
- Multi-omic analyses of the development of obesity-related depression linked to the gut microbe Anaerotruncus colihominis and its metabolite glutamate Chang et al. (2025) Full text ↗ PubMed ↗
- Polyvagal Theory: Current Status, Clinical Applications, and Future Directions Stephen (2025) Full text ↗ PubMed ↗
- Intermittent fasting boosts sexual behavior by limiting the central availability of tryptophan and serotonin Zhou et al. (2025) Full text ↗ PubMed ↗
- Breastfeeding: The Multifaceted Impact on Child Development and Maternal Well-Being Purkiewicz et al. (2025) Full text ↗ PubMed ↗
- The Molecular Basis of Love Babková et al. (2025) Full text ↗ PubMed ↗
- Evidence-based cesarean delivery: postoperative care (part 10) Mackeen et al. (2025) Full text ↗ PubMed ↗
- A narrative review of research linking non-sexual social touch to sleep quality Xie et al. (2024) Full text ↗ PubMed ↗
- The Moral Brain: a Neuropsychiatric Perspective on Moral Behavior and Motivation Briganti (2024) PubMed ↗
- Schizophrenia and the bodily self Gallese et al. (2024) Full text ↗ PubMed ↗
- Molecular pathways in placental-fetal development and disruption Zhao et al. (2024) Full text ↗ PubMed ↗
Links
Recovery resources
For stimuli that influence Oxytocin. Not medical advice — see all recovery resources.
SAMHSA National Helpline (US) · crisis
Co-Anon Family Groups · family & friends support
COSA · family & friends support
CoSLAA · family & friends support
Families Anonymous (FA) · family & friends support
Nar-Anon Family Groups · family & friends support
- Celebrate Recovery · general recovery
SMART Recovery · general recovery
Porn Addicts Anonymous (PAA) · process addiction
Sex Addicts Anonymous (SAA) · process addiction
Sex and Love Addicts Anonymous (SLAA) · process addiction
Sex and Porn Addicts Anonymous (SPAA) · process addiction
Sexaholics Anonymous (SA) · process addiction
Sexual Compulsives Anonymous (SCA) · process addiction
Narcotics Anonymous (NA) · substance abuse