We have all heard that cuddles release “the love hormone.” Is that true? And does it matter in any practical sense for how we feel? The core story is real — though the full chain from “quick hug” to “measurable hormone” to “lasting wellbeing effect” is more complicated than the popular version.

The touch pathway

Your skin contains a specialised class of nerve fibres — C-tactile afferents — found only in hairy skin and optimally responsive to slow, gentle stroking at roughly 1–10 cm/s. They are, in a meaningful sense, wired for affiliative touch: they fire most strongly at the speed people rate as most pleasant.1 Their activation reaches brain regions involved in social reward and bonding, and is associated with the release of oxytocin.2 A 2025 review confirmed social touch as a primary emotion-regulation mechanism, with robust links to autonomic settling.3

Oxytocin and cortisol

Laboratory studies in couples have found that warm, affectionate contact increases salivary oxytocin and reduces blood pressure and cortisol compared with control conditions.4 The oxytocin–cortisol relationship is an inverse one: oxytocin modulates the HPA axis, which produces cortisol.5 Studies of couples navigating stress together find that oxytocin dampens cortisol reactivity, particularly in those who struggle to self-regulate.

One partner cannot easily settle while the other remains activated. Shared rituals create synchrony of intention.

Where the evidence is thinner

The “cuddle and feel better” claim is plausible and directionally supported, but the dose-response specifics are unclear — how long, how much, and whether it generalises from the lab to a tired couple on a Tuesday. Most studies measure peripheral oxytocin (blood or saliva), which does not perfectly reflect central brain activity. Honest uncertainty remains.

What this might mean for your evening

There is reasonable evidence that gentle, unhurried contact between partners supports parasympathetic settling and reduces stress markers. Whether the mechanism is oxytocin, conditioned association, simple attention, or all three is genuinely still open — and the practical implication is the same regardless. Shared, unrushed closeness helps both people shift state. That is a behavioural effect as much as a hormonal one, and it does not make it less real.

A note. This is general education, not medical advice. Nothing here is a claim about any Mythrae product.

References

  1. Walker, S. C. et al. (2017). C-tactile afferents: cutaneous mediators of oxytocin release during affiliative tactile interactions? Neuropeptides / ScienceDirect.
  2. PMC (2025). C-tactile afferents and the neuroscience of affective touch.
  3. Frontiers in Psychology (2025). Touch as emotion regulation.
  4. Light, K. C., Grewen, K. M. & Amico, J. A. (2005). Partner contact, oxytocin, and lower blood pressure. Biological Psychology; via PMC couples-interaction review.
  5. Cardoso, C. et al. (2019). The mutual regulation of oxytocin and cortisol. PMC.

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