You’ve probably heard about microdosing, the “productivity hack” popular among Silicon Valley engineers and business leaders. Microdosers take regular small doses of LSD or magic mushrooms. At these doses, they don’t experience mind-bending, hallucinatory trips, but they say they get a jolt in creativity and focus that can elevate work performance, help relationships, and generally improve a stressful and demanding daily life. If its proponents are to be believed, microdosing offers the cure for an era dominated by digital distractions and existential anxiety—a cup of coffee with a little Tony Robbins stirred in.

So far, though, it’s been impossible to separate truth from hype. That’s because, until recently, microdoses haven’t been tested in placebo-controlled trials. Late last year, the first placebo-controlled microdose trial was published. The study concluded that microdoses of LSD appreciably altered subjects’ sense of time, allowing them to more accurately reproduce lapsed spans of time. While it doesn’t prove that microdoses act as a novel cognitive enhancer, the study starts to piece together a compelling story on how LSD alters the brain’s perceptive and cognitive systems in a way that could lead to more creativity and focus.

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