Research FAQ
Psilocybin, answered
Short answers up top, the studies underneath. Every article is labeled by how strong the evidence is, so you can tell a finding from a hunch.
The basics
What Do Shrooms Do to Your Brain?
Serotonin receptors, quieter brain networks, visuals, and new neural connections.
Well-established scienceHow Long Do Shrooms Last?
Onset, peak, comedown, and afterglow, hour by hour, plus what makes a trip longer or shorter.
Well-established scienceWhat Do Shrooms Feel Like?
Visuals, emotions, nausea, time distortion, and why a third of volunteers call it one of the most meaningful days of their lives.
Well-established scienceWhat Is Psilocybin?
The compound behind magic mushrooms: where it comes from, how it works, and why medicine wants it back.
Safety and risks
Are Shrooms Addictive?
Low abuse potential, no withdrawal, and a tolerance curve so steep it acts like a built-in speed bump.
Survey and trial dataWhat Is a Bad Trip, and What Helps?
Why difficult trips happen, how often, what set and setting really means, and when to call for help.
Well-established scienceCan You Overdose on Shrooms?
Why a fatal psilocybin overdose is nearly unheard of, and the three things that actually hurt people.
Lab and pharmacology dataDo Shrooms Show Up on a Drug Test?
Why standard panels miss psilocybin, what specialized tests can find, and how long it stays detectable.
Limited researchHPPD: Can Shrooms Cause Lasting Visual Changes?
What HPPD is, how often it follows psilocybin, the two types, and what treatment research shows.
Clinical and survey dataShrooms and Alcohol, SSRIs, and Other Interactions
Alcohol, cannabis, antidepressants, lithium: which combinations blunt the experience and which ones are dangerous.
Clinical trial dataPsilocybin Side Effects, Risks, and Who Should Not Take It
Common side effects, rare serious risks, and the conditions and medications that should keep you away.
What it treats
Psilocybin for Depression: What the Research Shows in 2026
Two Phase 3 trials, an FDA filing, and results that last months after one or two sessions.
Randomized and pilot trialsPsilocybin for Addiction: Alcohol, Smoking, and Beyond
The alcohol trial, the smoking pilot, and why a psychedelic might loosen addiction's grip.
Randomized trialsPsilocybin for Anxiety: What the Research Shows
Big results for anxiety in serious illness, encouraging real-world data, and why the paradox makes sense.
Phase 2 data, Phase 3 underwayPsilocybin for PTSD: What the Trials Show
Early results, a late-stage trial cleared in 2026, and how psilocybin compares with MDMA for PTSD.
Anecdotal and early evidencePsilocybin for Cluster Headaches, OCD, and Other Unproven Uses
Cluster headaches, migraine, OCD, anorexia, ADHD, and more. What's promising, what's hype.
Graded by evidenceWhat Can Psilocybin Treat?
Every condition psilocybin is being studied for, sorted from Phase 3 proof to promising pilot.
Therapy and dosing
Microdosing Psilocybin: What the Evidence Actually Shows
Why microdosers feel better, why placebo groups feel better too, and the safety questions nobody has answered.
Clinical trial dataPsilocybin Dose, Explained: Why More Isn't Better
How trials measure doses, why mushroom potency is a guessing game, and why bigger doses belong with professionals.
State program rulesWhat Is Psilocybin Therapy, and What's It Like?
Preparation, the session, integration, cost, and how licensed programs differ from clinical trials.
Clinical trial dataPsilocybin vs. Ketamine vs. MDMA: How Each One Works
Three very different drugs, three different brain systems, and very different paths to your doctor's office.
Nature and history
Are Mushrooms More Closely Related to Humans Than to Plants?
Why fungi are on our side of the family tree, and what we share with mushrooms.
Historical recordThe History of Magic Mushrooms, From the Aztecs to the FDA
Aztec rituals, María Sabina, the 1957 LIFE article, Hofmann, Leary, prohibition, and the comeback.
Fossil record, some debateHow Old Are Mushrooms? Fungi in the Fossil Record
Billion-year-old fungi, the oldest mushroom fossil, and when psilocybin first appeared.
MycologyPsilocybe Cubensis: The World's Most Famous Magic Mushroom
The species behind Golden Teacher and Penis Envy, where it came from, and why strain names are mostly marketing.
MycologyWhich Mushrooms Contain Psilocybin, and Where Do They Grow?
Cubensis, liberty caps, wavy caps, and more: where each grows, and the deadly look-alikes.
Speculative hypothesisThe Stoned Ape Theory: Did Magic Mushrooms Make Us Human?
Terence McKenna's famous idea, why it caught on, and why scientists aren't buying it.
The law
Are Shrooms Legal? Psilocybin Laws by State in 2026
Federal law, legal state programs, decriminalized cities, and what's changing in 2026.
Updated October 2026Is It Legal to Grow Magic Mushrooms?
Why spores are federally legal, why germination changes everything, and the one state that allows home growing.
Historical and policy recordWhy Are Shrooms Illegal? The History of Psychedelic Prohibition
How psilocybin became Schedule I, the politics behind it, and the case on both sides.