Cannabis smokers often report that they use the drug to relax or relieve stress, but few studies provide clinical evidence of these effects.
Now, researchers at the University of Illinois at Chicago and the University of Chicago report that low levels tetrahydrocannabinol, or THC, the main psychoactive compound in marijuana, does reduce stress, but in a highly dose-dependent manner: very low doses lessened the jitters of a public-speaking task, while slightly higher doses — enough to produce a mild “high” — actually increased anxiety.
Cannabis is a highly regulated category 1 substance, and permits to study the drug are difficult to obtain. While it is common knowledge that many people use cannabis for its stress-relieving effects, “very few published studies have looked into the effects of THC on stress, or at the effects of different levels of THC on stress,” says Emma Childs, associate professor of psychiatry in the UIC College of Medicine and corresponding author on …
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