In places where recreational cannabis remains illegal, some students have received medical clearance or used “hemp with Delta-8 THC, which currently inhabits a legal gray zone despite being intoxicating, albeit less so than Delta-9 THC,” Susan A. Stoner, a research scientist at the University of Washington’s Addictions, Drug and Alcohol Institute, told The Washington Post. Delta-9 THC and Delta-8 THC are two chemical compounds derived from marijuana. The former is the main psychoactive compound that produces the drug’s euphoric effects. The latter is derived from cannabidiol, a.k.a. CBD, and causes a less potent high.