Functional high

⚠️ Colloquial/marketing term with limited peer-reviewed basis. A "functional high" is operationally defined by users as a state of mild cannabis intoxication permitting activities of daily living — conversation, work, exercise, creative tasks — without conspicuous impairment. The concept overlaps with microdosing and "start low, go slow" clinical guidance (MacCallum & Russo 2018 Eur J Intern Med). Empirically, any THC dose produces measurable impairment on sensitive driving-relevant tasks (McCartney et al. 2021 Neurosci Biobehav Rev meta-analysis), so "functional" is a subjective rather than pharmacodynamic claim: users may feel unimpaired while remaining objectively impaired. Tolerance in regular users partially blunts impairment (Ramaekers 2016 Sci Rep) but does not abolish it. Chemovars with balanced THC:CBD or modest THC (<10%) are anecdotally associated with more "functional" profiles; no RCT validates this. Citations: MacCallum CA, Russo EB. Eur J Intern Med. 2018;49:12-19; McCartney D et al. Neurosci Biobehav Rev. 2021;126:175-193; Ramaekers JG et al. Sci Rep. 2016;6:26843.