After this, he isn’t going to fear death at all.

Bryan Johnson, the millionaire tech entrepreneur famous for tracking his boners and doping his son’s blood, is about to start a new three-month regimen of taking five grams of magic mushrooms once a month.

If you’ve never been to shroomland, let me just say: five grams of magic mushrooms is not a dose to take haphazardly. Terence McKenna, the American philosopher and ethnobotanist, famous for his speeches and opinions about magic mushrooms, once said that a five-gram dose is enough to experience a full “ego death” and would often prescribe the trip to those seeking enlightenment.

Doing magic mushrooms this Sunday.

Protocol
+ dose: 5 grams
+ frequency: 1x/mo for 3 mo
+ objective: exploring longevity effects

Measurement
+ 249 independent biomarkers
+ 29 vials of blood
+ brain scans
+ urine, stool, saliva, fertility
+ multi-omics profiling (DNA,… pic.twitter.com/BEt9NBRusj

— Bryan Johnson (@bryan_johnson) November 7, 2025

Johnson, however, is not out to awaken his third eye or recharge his chakras; he’s hoping to study the long-term health benefits of psilocybin. Hopefully, he isn’t serious and it’s just a troll, or if he is serious, he knows what he’s in for, because three months of treatment that strong can have some very strong and very serious lasting effects.

Johnson might never find the cure to living forever, but after three doses of that many shrooms, he might not care to.