The man who is spending $2 million (£1.6 million) a year in the hopes of getting the body of an 18-year-old has explained why he's also trying to get a younger penis.
If you've not heard of Bryan Johnson before he's a biohacker who is spending a fortune and living a very strict life in an attempt to make his body younger.
The 46-year-old is on a strict vegan diet where he consumes 1,977 calories a day, boosted by a plethora of supplements and exercise.
Then there's all the procedures he's had done from his monthly tests and other experiments like injecting himself with blood plasma from his teenage son.
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According to doctors he has managed to turn his biological clock back by about five years, but the 46-year-old has a long way to go before he could be back in an 18-year-old body again.
One of his other claims is that he's made his penis 15 years younger, in part thanks to a special wearable device on his penis which measures his erections during the night.
According to Johnson, he's got an erection for an average of two hours and 12 minutes each night but to hit his target of having an 18-year-old ding-a-ling between his legs he says he needs to get it up for three hours and 30 minutes.
The former Braintree boss explained that he goes to bed at 8:30pm every day and his penis shall perform for nothing but the measuring device he wears beyond that point.
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Johnson says he has 'no plans to die' but as far as his life is concerned he'll only share it with someone who can follow his very strict rules.
If you're looking for a man who doesn't want pillow talk and doesn't want you sleeping next to him because you might interrupt his erection-measuring device then he's your perfect man.
Taking to Instagram, Johnson explained why it's important for him to have a younger Johnson in his quest to de-age his body by 28 years.
He said it was a matter of 'looking at every organ of the entire body', telling his social media followers that 'your reproductive system is just as important as your heart, your lungs and your liver'.
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Johnson also said that when it came to the dingle-dongle people had the wrong idea in their minds, as size wasn't everything you had to measure to check if it was measuring up or not.
"You really need to know what is the flow, what's your urination speed, what are your night time erections," he said.
If you say so, Bryan.
Joe Harker