The Scientist Who Injected Himself With Animal Testicles
How a 72-year-old Harvard professor sparked a global medical phenomenon in 1889
When you mention novel compounds to those outside our corner of the health space, most view you as borderline insane. (Fine…will admit some are.)
But most don’t know the story of Dr. Brown-Séquard. It turns out exploring health through self-experimentation is nothing new. Just forgotten about.
Here’s the story of the “ballsy” scientist who had thousands of physicians worldwide injecting the "Elixir of Life."
The Legend of Brown-Séquard
Dr. Charles-Édouard Brown-Séquard wasn’t exactly a fringe biohacker with nothing to lose. Distinguished physiologist. Fellow of the Royal Society. Harvard Medical School professor. Like many in their old age, he watched his strength gradually diminish in his later years of life.
Throughout his life, Brown-Séquard hypothesized that testicles produce a sort of “dynamogenic power” that declines with age causing an old age weakness. In his 1869 lectures, he proposed injecting semen into the blood of elderly patients to restore vitality.
Then in May 1889 at age of 721, Brown-Séquard's own strength had deteriorated to the point he couldn't stand for more than 30 minutes without exhaustion. So he decided to test his theory. On himself.
Taking freshly removed testicles from dogs and guinea-pigs, he crushed them immediately after extraction and mixed the juice with blood from the testicular veins and semen.
On May 15th, he started self-administering subcutaneous injections of his solution. After the third one, Brown-Séquard experienced what he called a "radical change." Just one week prior, he was unable to stand for more than 30 minutes. Now, he was working on his feet for several hours at a time.
But it wasn’t just his energy he saw improve. Brown-Séquard reported an increase of 16 lb in forearm strength tested with a dynamometer matching his strength to that of 26 yrs prior. He even reported improvement in bowel movements & cognition.
Validation of His Findings
On June 1st, he presented his findings to the Société de Biologie in Paris, somewhat expecting to be dismissed as delusional.
Dr. Variot sat in the audience that day.
Acting independently, Variot administered similar injections to three elderly men himself using testicles from rabbits and guinea-pigs. He told his patients only that they were receiving “fortifying injections,” with no mention of the source or expected effects.
All three experienced nearly identical improvements to those Brown-Séquard observed in himself.
Then Variot conducted the control part of the experiment. He injected two other patients with pure water, however no strengthening effects occurred. When he subsequently gave these same patients the actual testicular extract, they experienced the same improvements.
The “Counterproof”
Five and a half weeks after his final injection, Brown-Séquard stopped treatment to observe how long effects would persist. For four weeks, he maintained his improved condition. Then, by July 3rd, he noticed a rapid return to his previous state of weakness.
This reversal, he noted, served as “excellent counterproof” of the treatment’s genuine effects.
Word Spreads
Three months post-experiment, press coverage spread to the US in the August edition of Scientific American Supplement2.
Frank Leslie’s Illustrated Newspaper3 published similar experiments conducted by former U.S. Army Surgeon-General William A. Hammond using testicular extracts :
“the result of the application to several old gentlemen has been to renew their vital energies to a noticeable extent, and to give them an invigoration that was sensibly felt.”
By the end of 1890, more than 12k physicians across the globe were injecting what came to be known as the “Elixir of Life”.
I don’t tell this story as a matter of convincing you animal nuts are just the revival we need in the longevity movement.
I say this as a reminder to balance two thoughts simultaneously in today’s health landscape:
Proceed with caution in what is the wild wild west of the peptide/research compound space today. (COAs & 99%+ purity always)
But if you’re waiting for an RCT on every potential intervention — expect to be late.
Stay wise. Stay dialed in. Stay after it.
Your friend,
Phys
Brown-Séquard, Charles-Édouard. “The Effects Produced on Man by Subcutaneous Injections of a Liquid Obtained from the Testicles of Animals.” The Lancet, vol. 2, 1889, pp. 105-107.
Sci. Amer. Suppl., 10 August 1889, pp. 11347-48.
Frank Leslie's Illustrated Newspaper, 24 August 1889, p. 39, col. 1.