Head high

"Head high" is a lay descriptor for a predominantly cerebral cannabis experience — euphoria, creativity, talkativeness, energy, and perceptual novelty — with relatively little body heaviness. It is anecdotally linked to sativa-type chemovars higher in limonene, α-pinene, terpinolene, and sometimes THCV, a propyl homologue of THC that acts as a CB1 neutral antagonist at lower doses and may attenuate some of THC's sedating and appetite-stimulating effects (Englund et al. 2016 J Psychopharmacol). Russo (2011) hypothesized that limonene and pinene contribute antidepressant, alerting, and memory-protective effects that shift subjective profile toward "heady." However, no randomized controlled trial has demonstrated that any specific terpene or THCV ratio reliably produces a "head high" versus "body high" in blinded conditions. ⚠️ Phenomenological category with correlational, not causal, cannabinoid/terpene evidence. Citations: Russo EB. Br J Pharmacol. 2011;163:1344-1364; Englund A et al. J Psychopharmacol. 2016;30(2):140-151; NASEM 2017.