Real-time monitoring of 36 young adults found cannabis use was most likely at home, during neutral moods, when experiencing cravings, and with fewer people around.
Addiction therapists, young adult cannabis users interested in their use patterns, behavioral intervention researchers.
Home use: 97% more likely (aOR 1.97)
What the researchers found
Using ecological momentary assessment over 30 days with 36 young adults, cannabis use was more likely at neutral affect (aOR 0.95) and neutral arousal (aOR 1.52), higher craving (aOR 1.52), and during substance intoxication (aOR 1.25). External factors: use was more likely at home (aOR 1.97), less likely where smoking was forbidden (aOR 0.46), and less likely with more people present (aOR 0.91 per person).
Why it matters
Understanding when and why people use cannabis in real time is crucial for developing effective interventions. The finding that cannabis use occurs at neutral rather than negative emotional states challenges the self-medication narrative and suggests habitual or routine use patterns may be more important drivers than emotional coping.
The numbers in context
36 participants. 30-day monitoring period. 1,632 prompts completed. Home use: aOR 1.97. Forbidden places: aOR 0.46. Per additional person present: aOR 0.91. Craving: aOR 1.52. Mean age 24.2.
How the study worked
Ecological Momentary Assessment study with 36 young adults (mean age 24.2, 33% female, 61% sexual minority, 44% non-Hispanic White) who regularly used both cannabis and tobacco. Participants completed multiple daily surveys over 30 days (1,632 total prompts). Generalized estimating equations estimated associations between momentary antecedents and cannabis use.
What this study cannot tell us
Small sample (N=36). Participants used both cannabis and tobacco, limiting generalizability. Self-reported momentary data may be subject to reporting bias. Mostly sexual minority participants (61%). 30-day window may not capture seasonal or other temporal patterns.
How to read the evidence
Preliminary: innovative methodology but very small sample (N=36) with specific demographic characteristics limiting generalizability.
When this study was published
2025 study
The bigger picture
Much addiction theory assumes people use substances to cope with negative emotions. This study's finding that cannabis use occurs primarily at neutral moods rather than during distress suggests daily cannabis use may be more habitual than emotionally driven, which has different implications for treatment approaches.
Questions still open
- Would environmental interventions (making more spaces cannabis-free) reduce use more effectively than emotional coping skills? Does the neutral-mood finding generalize to cannabis-only users? Could disrupting habitual home-use patterns be a treatment strategy?
Common questions
When are people most likely to use cannabis?
Do people use cannabis to cope with negative emotions?
Read the original research
Real-time antecedents of cannabis use among young adults: An Ecological Momentary Assessment study.
Experimental and clinical psychopharmacology, 33(4), 396-406
Citation
Regan, Timothy; Devkota, Janardan; McQuoid, Julia; Lopez-Paguyo, Kekoa; Nguyen, Nhung; Meacham, Meredith C; Ling, Pamela M; Thrul, Johannes. (2025). Real-time antecedents of cannabis use among young adults: An Ecological Momentary Assessment study.. Experimental and clinical psychopharmacology, 33(4), 396-406. https://doi.org/10.1037/pha0000775
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