Biohacker Bryan Johnson has revealed the effects of undergoing shockwave therapy on his penis.
The 46-year-old is taking part in a lengthy and intense experimental medical program, spending a whopping $2 million per year to try and reverse his biological age.
Whether it be following a strict diet, or using his son's blood, Johnson is doing everything he can to make his body as young as possible again - even if that means giving it a 'painful' shock.
In an interview with Steven Bartlett on The Diary Of A CEO podcast, Johnson brings out a device he's been using to measure his nighttime erections.
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Why? Well, the biohacker notes your nighttime erections 'are actually a meaningful health indicator'.
Johnson explains he's measuring his nighttime erections and found he's typically erect for 'two hours and 12 minutes' of the night, although undergoing shockwave therapy has impacted this.
As well as measuring his nighttime erections, Johnson has also been taking part in 'shock-focused shockwave therapy' which sees him sit in a chair and get his penis 'shocked'.
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He explains: "So there's this technology, you have a wand and you sit in a chair and then the technician uses the wand and basically shocks your penis, through the acoustic technology.
"And it does the same things as workouts [...] where you're creating micro injuries so that it rebuilds."
While the technology is more commonly used for other parts of the body, such as dodgy knees or joints or shoulders, it can also be used for erectile dysfunction.
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And while Johnson certainly doesn't have that - with the biohacker noting he 'score[s] perfect[ly] in every category - Johnson and his team wanted to see the technology's effects on his penis, wondering if it would 'rejuvenate' it and 'increase nighttime erections'.
So, what effect did this 'painful' acoustic shock technology have?
Johnson admits he was 'shocked' by the results.
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"I'm now two months in, in my subjective experience, it's as if my penis has gotten like 15 years younger," he continues. "So we're still in the early stages, we still need to measure, we need data before we're going to believe anything subjectively."
He explains it's 'improved the structure' of his penis, although, his 'youthful' penis does come at a cost.
"It's painful. You need to be focused. You need to do pain management," he says. "It's like maybe a seven out of 10, but once you get to the tip, it's like a nine out of 10 because the tip you have improved sensitivity."
Johnson resolves: "In addition to what we're trying to do with the nighttime erections, it also improves erection strength and orgasm pleasurability. So it has all kinds of benefits I'm trying to figure out."
Topics: Celebrity, Health, Money, Social Media, YouTube, Bryan Johnson