Bryan Johnson uploads “Can I dunk at 49?”

On 22 September 2026 at 09:00 Pacific time, Bryan Johnson’s official YouTube channel uploaded “Can I dunk at 49?”. The description says he is learning to dunk a basketball at age 49 and is training strength, speed and vertical jump to find out whether he can dunk at that age. The accessible metadata identifies the channel, title, upload time and exact URL, but it does not provide a protocol registration, comparator, prespecified endpoint, sample size beyond Johnson, testing device, injury monitoring or validated outcome measure. The video page does not establish which training components produced the reported progress, and this record does not infer details that are unavailable from the metadata. The upload is best classified as a public n=1 performance experiment rather than a clinical study. A successful dunk would be a personal athletic result, not evidence that the programme slows aging or improves longevity. The item is included because the weekly sweep covers public experiments and official-channel uploads. No ingredient grade change follows, and the video does not validate creatine, sauna, sleep, IHHT or any other part of the wider Blueprint stack.

The video frames the question as whether Johnson can dunk at 49; no scientific conclusion is reported in the accessible metadata.