Select Page

Meditation

  • Kabat-Zinn, J. (1982). “An outpatient program in behavioral medicine for chronic pain patients based on the practice of mindfulness meditation: theoretical considerations and preliminary results.” General Hospital Psychiatry, 4(1), 33–47. The founding paper behind what became the Mindfulness-Based Stress Reduction (MBSR) programme.
  • Kabat-Zinn, J., Massion, A.O., Kristeller, J., Peterson, L.G., Fletcher, K.E., Pbert, L., Lenderking, W.R. & Santorelli, S.F. (1992). “Effectiveness of a meditation-based stress reduction program in the treatment of anxiety disorders.” American Journal of Psychiatry, 149(7), 936–943. An early clinical trial extending MBSR specifically to anxiety.
  • Chiesa, A. & Serretti, A. (2009). “Mindfulness-based stress reduction for stress management in healthy people: a review and meta-analysis.” Journal of Alternative and Complementary Medicine, 15(5), 593–600. The meta-analysis behind the “solid evidence for reducing anxiety” claim, in non-clinical populations.
  • Sanada, K., Montero-Marin, J., Alda Díez, M., Salas-Valero, M., Pérez-Yus, M.C., Morillo, H., Demarzo, M.M.P., García-Toro, M. & García-Campayo, J. (2016). “Effects of Mindfulness-Based Interventions on Salivary Cortisol in Healthy Adults: A Meta-Analytical Review.” Frontiers in Physiology, 7:471. The main source behind the “lowers cortisol” claim.
  • Linardon, J. (2023). “Rates of attrition and engagement in randomized controlled trials of mindfulness apps: Systematic review and meta-analysis.” Behaviour Research and Therapy, 170, 104421. Pooled dropout rate of 24.7% across trials, rising to 38.7% in larger studies — the source behind this page’s note on the gap between starting and sustaining a practice.

Sources

Every pathway on this site draws on published research. This page lists the sources behind each one, gathered together in a single place rather than scattered as footnotes. Each pathway’s sources are numbered from 1, so a reference number only ever refers to the list beneath its own heading.

Water: rivers & sea

  1. Wheeler, B.W., White, M., Stahl-Timmins, W. & Depledge, M.H. (2012). “Does living by the coast improve health and wellbeing?” Health & Place, 18(5).
  2. White, M.P., Alcock, I., Wheeler, B.W. & Depledge, M.H. (2013). “Coastal proximity, health and well-being: Results from a longitudinal panel survey.” Health & Place, 23.
  3. MacKerron, G. & Mourato, S. (2013). “Happiness is greater in natural environments.” Global Environmental Change, 23(5). The “Mappiness” smartphone study of around 20,000 participants, which found marine and coastal locations rated as the happiest environments.
  4. White, M.P. et al. (2020). “Blue space, health and well-being: A narrative overview and synthesis of potential benefits.” Environmental Research.
  5. University of Exeter, European Centre for Environment & Human Health — the “Blue Gym” research programme, led by Dr Mathew White, exploring the health and wellbeing benefits of aquatic environments.
  6. Nichols, W.J. (2014). Blue Mind. Little, Brown. Popular science rather than peer-reviewed research; referenced for context on the origin of the phrase “Blue Mind”.

Gardening & tending

  1. NHS England social prescribing evidence summaries, and published research from Thrive, the UK charity researching horticultural therapy and health.
  2. General literature on garden-based activity in dementia care, reporting reduced agitation and improved mood in residential settings.
  3. Lowry, C.A. et al. (2007). “Identification of an immune-responsive mesolimbocortical serotonergic system: Potential role in regulation of emotional behavior.” Neuroscience, 146(2). The mouse study behind the “soil bacteria” claim.
  4. O’Brien, M.E.R. et al. (2004). “SRL172 (killed Mycobacterium vaccae) in addition to standard chemotherapy improves quality of life without affecting survival, in patients with advanced non-small-cell lung cancer.” British Journal of Cancer, 90. The original cancer-patient observation that prompted the Lowry mouse research.
  5. Follow-up work from Lowry’s research group (e.g. a 2017 study published in PNAS on stress resilience in mice) continues to explore the mechanism, but no human trial has confirmed a direct antidepressant effect from soil bacteria.

Unstructured rest

  1. Wilson, T.D., Reinhard, D.A., Westgate, E.C., Gilbert, D.T., Ellerbeck, N., Hahn, C., Brown, C.L. & Shaked, A. (2014). “Just think: The challenges of the disengaged mind.” Science, 345(6192).
  2. Killingsworth, M.A. & Gilbert, D.T. (2010). “A wandering mind is an unhappy mind.” Science, 330(6006).
  3. General neuroscience literature on the default mode network and its role in memory consolidation and creative association.
  4. Coverage of “niksen” as a media and wellness trend (e.g. Time, Newsweek, Blue Zones), rather than an independently researched technique in its own right.

Daily structure

  1. Frank, E. (2007). “Interpersonal and social rhythm therapy: an intervention addressing rhythm dysregulation in bipolar disorder.” Dialogues in Clinical Neuroscience, 9(3), 325–332.
  2. Frank, E. et al. Two large controlled trials of Interpersonal and Social Rhythm Therapy (IPSRT), including a maintenance trial and the STEP-BD trial, supporting its use both acutely and for relapse prevention in bipolar disorder.
  3. General literature on daily routine and mental health during the COVID-19 lockdowns, reporting lower anxiety and depression among people who maintained a consistent schedule.
  4. Lally, P., van Jaarsveld, C.H.M., Potts, H.W.W. & Wardle, J. (2010). “How are habits formed: Modelling habit formation in the real world.” European Journal of Social Psychology, 40, 998–1009. The study behind the “66 days” figure, with a reported range of 18 to 254 days.
  5. Maltz, M. (1960). Psycho-Cybernetics. Prentice-Hall. The origin of the popular but unresearched “21 days to form a habit” claim, based on personal clinical observation rather than a study of habit formation.

Personal rituals

  1. Carvalho, C., Caetano, J.M., Cunha, L., Rebouta, P., Kaptchuk, T.J. & Kirsch, I. (2016). “Open-label placebo treatment in chronic low back pain: a randomized controlled trial.” Pain, 157(12), 2766–2772. The trial behind the “even knowing it’s a placebo” finding, and the source of the “ritual of care” framing used on this page.
  2. Kaptchuk, T.J. (2018). “Open-Label Placebo: Reflections on a Research Agenda.” Perspectives in Biology and Medicine, 61(3), 311–334. Kaptchuk’s own account of what the open-label placebo research suggests about ritual and therapeutic encounter as mechanisms in their own right.
  3. Miller, F.G. & Kaptchuk, T.J. (2008). “The power of context: reconceptualizing the placebo effect.” Journal of the Royal Society of Medicine, 101(5), 222–225. Argues that much of the benefit long attributed to medication itself may come from the ritual of the clinical encounter.
  4. General coverage of ritual-adjacent wellness claims (crystals, “manifestation” practices) attributing effects to the specific object or act, which the more careful research does not support – the attention and repetition appear to be doing the work, not the object.

Close relationships

  1. Holt-Lunstad, J., Smith, T.B. & Layton, J.B. (2010). “Social Relationships and Mortality Risk: A Meta-analytic Review.” PLoS Medicine, 7(7). The pooled data across roughly 300,000 participants behind the “as reliably as smoking” comparison.
  2. Cacioppo, J.T. & Patrick, W. (2008). Loneliness: Human Nature and the Need for Social Connection. W.W. Norton. Cacioppo’s foundational work establishing social connection as a primary biological need rather than a psychological preference.
  3. Cacioppo, J.T., Hawkley, L.C. & Thisted, R.A. (2010). “Perceived social isolation makes me sad: 5-year cross-lagged analyses of loneliness and depressive symptomatology in the Chicago Health, Aging, and Social Relations Study.” Psychology and Aging, 25(2).
  4. Vangelisti, A.L. (2015). General review literature on relationship quality versus quantity, supporting the “a couple of relationships that feel safe and reciprocal” framing used on this page.
  5. Lucas, M. et al. Popular coverage and secondary sourcing of the “love languages” framework’s evidence base — see Physical touch sources below for the primary replication study.

Physical touch

  1. Coan, J.A., Schaefer, H.S. & Davidson, R.J. (2006). “Lending a Hand: Social Regulation of the Neural Response to Threat.” Psychological Science, 17(12), 1032–1039. The hand-holding/threat-response fMRI study behind the “calmer activity in the brain regions that register danger” claim.
  2. Field, T. (2010). “Touch for socioemotional and physical well-being: A review.” Developmental Review, 30(4), 367–383. The main review behind the massage-therapy blood pressure and muscle tension findings.
  3. Light, K.C., Grewen, K.M. & Girdler, S.S. (2005). “More frequent partner hugs and higher oxytocin levels are linked to lower blood pressure and heart rate in premenopausal women.” Biological Psychology, 69(1), 5–21.
  4. Walum, H., Waldman, I.D. & Young, L.J. (2016). “Statistical and Methodological Considerations for the Interpretation of Intranasal Oxytocin Studies.” Biological Psychiatry, 79(3), 251–257. The replication critique behind the “have not held up well under closer testing” framing of the single-dose oxytocin claims.
  5. Lane, A., Luminet, O., Rimé, B., Gross, J.J., de Timary, P. & Mikolajczak, M. (2013). “Oxytocin increases the influence of public service advertisements.” PLoS ONE, 8(2). One of several attempted replications cited in the broader oxytocin-replication debate.

Animals & pets

  1. Cutt, H., Giles-Corti, B., Knuiman, M. & Burke, V. (2007). “Dog ownership, health and physical activity: A critical review of the literature.” Health & Place, 13(1), 261–272. The main review behind the dog-walking/activity-level claims.
  2. Allen, K., Blascovich, J. & Mendes, W.B. (2002). “Cardiovascular reactivity and the presence of pets, friends, and spouses: The truth about cats and dogs.” Psychosomatic Medicine, 64(5), 727–739. Source for the lower resting blood pressure finding.
  3. Wood, L., Giles-Corti, B. & Bulsara, M. (2005). “The pet connection: Pets as a conduit for social capital?” Social Science & Medicine, 61(6), 1159–1173. The study behind the “more passing conversation with strangers” claim about dog walkers.
  4. Kramer, C.K., Mehmood, S. & Suen, R.S. (2019). “Dog Ownership and Survival: A Systematic Review and Meta-Analysis.” Circulation: Cardiovascular Quality and Outcomes, 12(10). The meta-analysis whose authors caution that confounding factors (owners already being more mobile and socially connected) likely explain much of the apparent mortality benefit — the source of the “note on the hype” correction.

Humour & laughter

  1. Berk, L.S. et al. (1989). “Neuroendocrine and stress hormone changes during mirthful laughter.” American Journal of the Medical Sciences, 298(6), 390–396. Early work behind the cortisol-reduction claim.
  2. Zweyer, K., Velker, B. & Ruch, W. (2004). “Do cheerfulness, exhilaration, and humor production moderate pain tolerance? A FACS study.” Humor: International Journal of Humor Research, 17(1–2), 85–119. Source for the pain-tolerance finding referenced on this page.
  3. Dunbar, R.I.M. et al. (2012). “Social laughter is correlated with an elevated pain threshold.” Proceedings of the Royal Society B, 279(1731). Supports the “muscular act of laughing itself” framing and the social-bonding claim.
  4. Cousins, N. (1979). Anatomy of an Illness as Perceived by the Patient. W.W. Norton. The popular account behind “laughter is the best medicine”; later scrutiny (see below) found Cousins’ account overstated the role laughter played relative to his actual medical treatment.
  5. General critical commentary and follow-up reporting (e.g. in medical humanities literature) on the gap between Cousins’ popular narrative and the more modest, better-supported stress- and pain-reduction effects of laughter established in controlled research.

Play

  1. Brown, S. & Vaughan, C. (2009). Play: How It Shapes the Brain, Opens the Imagination, and Invigorates the Soul. Avery. Stuart Brown’s foundational work at the National Institute for Play, behind the “play deprivation” and adult rigidity claims used on this page.
  2. Fagen, R. (1981). Animal Play Behavior. Oxford University Press. Foundational cross-species review behind the claim that animals deprived of play struggle more with unfamiliar or stressful situations later in life.
  3. Proyer, R.T. (2013). “The well-being of playful adults: Adult playfulness, subjective well-being, physical well-being, and the pursuit of enjoyable activities.” European Journal of Humour Research, 1(1). Representative of the largely observational, correlational evidence base behind adult playfulness and wellbeing — the source of the “note on the hype” caveat about causal direction.
  4. General popular-wellness coverage of “reconnecting with your inner child” as a marketed concept, referenced for context rather than as a research source.