Bryan Johnson· Author
Penis rejuvenation baseline measurements: 1. Nighttime erection: Mean: 2 hr, 12 min (age 49) Goal 3 hr, 30 min (age 18)
The headline is broadly defensible, but the qualifications matter. Effect sizes vary by population, the strongest claims rest on shorter trials, and credible voices push back on how it's typically framed.
Penis rejuvenation baseline measurements: 1. Nighttime erection: Mean: 2 hr, 12 min (age 49) Goal 3 hr, 30 min (age 18)
Every Sunday: the week’s new conflicts and verdict changes — and nothing else.
Native comments, Twitter mentions, and Reddit threads about this claim — surfaced together so the conversation isn't fragmented across platforms.
Bookmarking — the dossier-vs-overview split is the right call. Most of the time I want overview; sometimes I want receipts.
Would love a "what would change this verdict" RSS feed. Sign me up if it exists.
Nighttime erection: Mean: 2 hr, 12 min (age 49)
Penis rejuvenation baseline measurements: 1. Nighttime erection: Mean: 2 hr, 12 min (age 49) Goal 3 hr, 30 min (age 18)
Nighttime erection: Mean: 2 hr, 12 min (age 49) Goal 3 hr, 30 min (age 18)
I need to see if I can do some therapies to reduce the biological age if I'm going to achieve age 18 of nighttime erections I need to have 3 hours and 30 minutes so I need to increase my nighttime erections by roughly an hour and 20 minutes
I did my nighttime erections and I averaged 2 hours and 12 minutes per night in erections which is a biotrial age of about 49 so 3 years older than my chronological age