The Cannabis sativa L. plant contains hundreds of phytocannabinoids, but putatively of highest importance to public health risk is the psychoactive cannabinoid delta-9-tetrahydrocannabinol (THC), which is associated with risk for cannabis use disorder, affective disturbance, cognitive harm and psychomotor impairment. Recently, there has been an increase in the use and availability of concentrated cannabis products (or ‘concentrates’) that are made by extracting cannabinoids from the plant to form a product with THC concentrations as high as 90–95%. These products are increasingly popular nationwide. The literature on these widely available high potency concentrates is limited and there are many unknowns about their potential harms.

中文翻译：

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推进大麻浓缩物和行为健康的科学

Cannabis sativa L. 植物含有数百种植物大麻素，但公认对公共健康风险最重要的是具有精神活性的大麻素 delta-9-四氢大麻酚 (THC)，它与大麻使用障碍、情感障碍、认知伤害和精神运动风险有关减值。最近，浓缩大麻产品（或“浓缩物”）的使用和可用性有所增加，这些产品是通过从植物中提取大麻素制成的 THC 浓度高达 90-95% 的产品。这些产品在全国越来越受欢迎。关于这些广泛使用的高效浓缩物的文献有限，而且关于它们的潜在危害还有很多未知数。