# Do you know your ‘penis age’? Bryan Johnson does

The 47-year-old tech millionaire claims to have the penis of a 22-year-old. How does he know, and what does it have to do with his dream of living for ever?

**Name:** Bryan Johnson.

**Age:** 47.

**Appearance:** Not a day over 45.

**He’s that multimillionaire who’s spending his fortune trying to live for ever, isn’t he?** He calls it “biohacking”, but yes, that’s him.

**Is he broke yet?** Not yet. Johnson spends a reported $2m (£1.6m) a year on project Blueprint, his personal programme aimed at defying the ageing process.

**What does the programme entail?** For starters, he goes to bed at 8:30pm every night and takes more than 100 pills a day.

**He sounds like my nan.** He also eats all his meals before 11am, bathes in LED light, and spends a part of his day sitting on magnets.

**How is all that working out for him?** It’s reckoned that, thanks to his strict regime, Johnson’s biological age lies somewhere in the mid-30s.

**According to my calculations, it ain’t worth it.** But he also has the penis of a 22-year-old.

**He should give it back.** To be clear, he has the penile health of someone 25 years younger.

**How would you even measure that?** By the number, duration and quality of one’s night-time erections.

**And how would you even measure **_that_****?** With an erectile tracker – you wear it to bed and it sends the data to your phone.

**So your phone tells you your penile age?** After a fashion, yes.

**Where can you get one of these devices? Asking for a friend.** You can  for £150, but the company that makes them is oversubscribed, so there’s currently a seven-to-eight-week waiting list.

**I should live so long.** Recently Johnson posted his penis data online, comparing it to data from his 19-year-old son Talmage.

**He didn’t.** He did. They were both age 22 in penile health terms. But Johnson isn’t simply showing off – night-time erections are a significant biomarker for longevity.

**Huge, if true.** Johnson is prepared for those sorts of jokes.

**Is he? Because I have more.** “While it kicks up some giggles,” he told MailOnline, “it really is one of the most important things for all of us to know about our bodies.”

**Say, is that an erectile tracker in your pocket, or are you just glad to see me?** “For example,” he says, “men who do not have night-time erections are at risk of 70% greater likelihood of premature death.”

**Enough about Bryan’s Johnson. Is he gonna live for ever, or what?** Probably not – the current death rate remains steady, at 100%.

**Do say:** “According to the data, I am very glad to see you indeed.”

**Don’t say:** “Sorry, I think I must have penis-dialled you.”
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