Bryan Johnson says he might have taken 'this whole longevity thing too far

Bryan Johnson says he is having second thoughts about his antiaging experiment. Bloomberg/Getty Images

Bryan Johnson says he is having second thoughts about his antiaging experiment.

In an X post, the famous biohacker said he might have taken the "whole longevity thing" too far.

Johnson was diagnosed with an autoimmune disease this year. He also took shrooms twice.

Longevity evangelist Bryan Johnson says he is having second thoughts.

The tech entrepreneur, who has transformed his body into a highly measured experiment in antiaging and longevity, is now expressing some doubts about his famous work.

"Been thinking things over and wonder if I've taken this whole longevity thing too far," Johnson wrote on X on Thursday.

For someone who has so enthusiastically devoted so much time and money to this experiment, it was easy to wonder whether he had been hacked. A day earlier, he said people may live to be 500 years old.

Johnson did not immediately reply to a request for comment from Business Insider.

It's been an eventful year in Johnson's campaign against aging. Earlier this month, he said he had been diagnosed with gastritis — an autoimmune condition in which the immune system attacks the stomach lining — that had gone undetected for years despite his extensive health testing. After the diagnosis, he said he would try to reverse what is considered by doctors to be an incurable condition.

He also took a healthy dose, twice, of psilocybin mushrooms , which, rather famously, can impact how one sees the world. He livestreamed his experience while taking almost 5 grams of the B+ strain of Psilocybe cubensis.

After analyzing the data, Johnson said the mushrooms offer "a compelling case for longevity potential."

"Psilocybin calmed my body and mind," he added.

Since selling the payments company Braintree, Johnson has spent millions a year in a regimented program to reverse aging. He officially launched Project Blueprint in 2021.

His protocol has included an early bedtime, a tightly controlled diet, daily exercise, supplements, prescription drugs, frequent bloodwork, scans, an omnipresent team of doctors, and experimental treatments. He has described himself as perhaps the most biologically measured person in history.

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