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Stropharia cubensis, now classified as Psilocybe cubensis, is a species of hallucinogenic fungus. These mushrooms, often called "magic mushrooms," contain two primary psychoactive compounds: psilocybin and psilocin. These compounds affect the brain by interacting with serotonin receptors, leading to altered perceptions of reality, emotions, and time.

Historically, these fungi have been used in traditional ceremonies for spiritual and healing purposes by Indigenous groups. In modern times, they are sometimes used recreationally and are being researched for potential therapeutic benefits in treating conditions like anxiety, depression, and PTSD. The effects are highly subjective and depend on the mushroom, dose, and the user's mindset and environment.12

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