Bryan Johnson engagement report
@bryan_johnson - 2.2M followers on X
Measured over 61 original posts from a 30-day window, last computed on October 25, 2026.
Engagement
A typical post picks up 2.4K interactions against 2.2M followers, an engagement rate of 0.11%. Measured over 61 original posts, its engagement rate beats 72% of 20,444 tracked accounts of a similar size, which puts it in the middle of its size range rather than at either end. Posts are seen about 175K times each, and 1.38% of those impressions turn into an interaction. That is about 7.97% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 3.6 posts a day over the last 30 days, with activity on almost every day in the window. Most posts go out around 17:00 UTC, and Wednesday is the busiest day of the week. Of the 61 posts sampled, 49% carry an image or video and 8% are part of a thread. The account's strongest tracked post pulled 101K interactions, about 42x its own typical post.
Measured over 61 original posts from a 30-day window, last computed on October 25, 2026.
Compared with accounts its own size
Bryan Johnson's engagement rate beats 72% of the tracked X accounts closest to it in follower count (20,444 accounts, accounts of similar size (decile 10 of 10)). A percentile is spread evenly by construction, so 50 really is the middle of that group and 90 really is its top tenth.
On engagement per impression rather than per follower it beats 56% of the same group. When those two numbers disagree, the gap is about how far its posts travel rather than how people react to them.
Where this sits in the catalog
At 0.11%, Bryan Johnson sits above the 25th percentile of the 204,694 accounts in this comparison. That places it in the below the median band, which runs 0.024% to 0.143%.
Show the percentile table
| Percentile | Engagement rate |
|---|---|
| 10th percentile | 0.004% |
| 25th percentile | 0.024% |
| 50th percentile | 0.143% |
| 75th percentile | 0.677% |
| 90th percentile | 2.55% |
| 99th percentile | 82.4% |
This ruler is the whole measured catalog, not a size-matched group: it shows where the raw rate falls across every account we can measure, all of which are large. For a like-for-like comparison, read the size-band percentile above instead. See how the bands are built
Posting timing
This account posts most often around 17:00 UTC, and Wednesday is its busiest day of the week. The bars below are the catalog-wide pattern, with this account's own busiest slot marked. They do not show how this account performs at each hour: we keep one aggregate per account, not one per hour, so that measurement does not exist in our data.
Show engagement by hour posted, utc as a table
| Hour (UTC) | Vs author median | Posts |
|---|---|---|
| 00:00 UTC | -1% | 89K |
| 01:00 UTC | -2% | 90K |
| 02:00 UTC | -3% | 88K |
| 03:00 UTC | -4% | 94K |
| 04:00 UTC | -5% | 76K |
| 05:00 UTC | -4% | 75K |
| 06:00 UTC | -5% | 86K |
| 07:00 UTC | -5% | 93K |
| 08:00 UTC | -4% | 108K |
| 09:00 UTC | -4% | 124K |
| 10:00 UTC | -3% | 129K |
| 11:00 UTC | -3% | 141K |
| 12:00 UTC | -3% | 154K |
| 13:00 UTC | -3% | 167K |
| 14:00 UTC | -4% | 173K |
| 15:00 UTC | -2% | 176K |
| 16:00 UTC | -3% | 171K |
| 17:00 UTC | -3% | 159K |
| 18:00 UTC | -2% | 149K |
| 19:00 UTC | -2% | 141K |
| 20:00 UTC | -1% | 131K |
| 21:00 UTC | 0% | 116K |
| 22:00 UTC | -2% | 100K |
| 23:00 UTC | -1% | 90K |
Show engagement by day of week as a table
| Day | Vs author median | Posts |
|---|---|---|
| Sunday | +5% | 393K |
| Monday | +1% | 483K |
| Tuesday | -2% | 520K |
| Wednesday | -3% | 472K |
| Thursday | -2% | 430K |
| Friday | -3% | 447K |
| Saturday | +2% | 393K |
Formats this account uses
Its own posting mix on the left, and what each of those formats does across every account we track on the right. Only formats where the effect clears our publish test appear here, so an empty row is a format we could not measure rather than one that does nothing.
| Format | This account | Catalog effect | 95% interval | Accounts behind it |
|---|---|---|---|---|
| Image or video | 49% of posts | +111% | +108% to +115% | 34K |
| Outbound link | 0% of posts | -41% | -42% to -40% | 32K |
| Typical length | - | +15% | +14% to +16% | 32K |
- 49% of this account's sampled posts carry an image or video. Across the catalog, posts with an image or video run 111% above the same accounts' other posts.
- 0% of its posts carry a link off X. Across the catalog, posts with an outbound link run 41% below the same accounts' other posts.
- Its average post runs 541 characters, which falls in the over 280 characters band. Across the catalog, posts over 280 characters run 15% above the same accounts' other posts.
These are catalog-wide differences applied to this account's own posting mix, not a measurement of how each format performs for this account specifically. We keep one median per account, not one per format per account, so the second thing is not something this data can tell you.
Best tweets
- Aug 15, 202642x their median
https://t.co/Wma9jFMlaN
- Jun 9, 202625x their median
This is biblical. A woman in her eighties. Ten years into Alzheimer's. Hadn't spoken a full sentence in five years. Takes one, 5 gram dose of psilocybin. She slept 19 hours and woke up and spoke for hours about her life, recognized family and held real conversations. She regained bladder control after five years, walked on her own. and dressed herself. Gains held for weeks.
- Dec 11, 202415x their median
On @netflix Jan 1 2025 is the year of don’t die https://t.co/RJosMclnJb
- Aug 30, 202611x their median
Kate’s period will start any minute now…. I’ve been waiting for 34 days. This is historic; the most measured menstrual cycle in history. What we’ve measured so far: > 408 min of brain data > 10k blood glucose readings > 48,960 core body temp readings > 136 photos of her body > much more.. see below In total, 14 million data points. Full list of what we’re measuring: > core body temp via ingested pill > pain threshold > grip strength > photograph of the body > body thermal temperature > blood pressure > weighing menstrual blood > cortisol > blood glucose > DNA methylation > oral microbiome > stool microbiome > urine metabolites for hormones > stool microbiome > vaginal microbiome > cervical mucus > sleep > wearable > resting metabolic rate > metabolism. > techno-tampon, for lady boners > reaction time > skin biological age > brain with Kernel > breast measurement > urine concentration > hormone concentration > weight > nutrition proud of @_katetolo for becoming the world's most measured woman
- Oct 14, 202611x their median
laying my entire body weight on my crocodile wife that i love https://t.co/MO8pLdFYKT
- Aug 20, 202610x their median
I got a dog. Dog owners have about a 24% lower risk of dying early. What should I do now? https://t.co/eOqo1zZowZ
- Oct 5, 20269.0x their median
What the FUCK is going down on Facebook marketplace 😭 https://t.co/RWt8fA1SxB
- Aug 6, 20268.4x their median
I know some of you find me insufferable sorry about that
- Jul 21, 20266.9x their median
Being mean is bad for your health. A single hostile interaction: + locks you in a cortisol penalty box for 60-90 min + suppresses recovery capacity + elevates your heart rate Kindness conserves your energy resources.
- Jul 31, 20268.1x their median
Kate’s period blood is in my -80 °C freezer. Around 10 mL. https://t.co/OdLxO9qyJu
Ranked by total interactions across everything we have tracked for this account, which is a longer history than the 30-day window the rates above use. The multiple compares each post to this account's own median.
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Reading these numbers
A typical post picks up 2.4K interactions against 2.2M followers, an engagement rate of 0.11%. Measured over 61 original posts, its engagement rate beats 72% of 20,444 tracked accounts of a similar size, which puts it in the middle of its size range rather than at either end. Posts are seen about 175K times each, and 1.38% of those impressions turn into an interaction. That is about 7.97% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 3.6 posts a day over the last 30 days, with activity on almost every day in the window. Most posts go out around 17:00 UTC, and Wednesday is the busiest day of the week. Of the 61 posts sampled, 49% carry an image or video and 8% are part of a thread. The account's strongest tracked post pulled 101K interactions, about 42x its own typical post.
- What is Bryan Johnson's engagement rate on X?
- Bryan Johnson (@bryan_johnson) has an engagement rate of 0.11%, based on the median interactions across 61 original posts from the last 30 days against 2,189,904 followers. Replies, reposts and quote-posts of other people are excluded from that sample.
- Is that a good engagement rate?
- At 0.11%, Bryan Johnson sits above the 25th percentile of the 204,694 accounts in this comparison. Those comparison accounts are all large ones, because our scanning cadence is weighted towards big accounts, so this is a ranking among peers of similar scale rather than a ranking across X.
- Does @bryan_johnson have real engagement?
- Its engagement rate beats 72% of the tracked X accounts closest to it in follower count (20,444 accounts), which puts it in the middle of its size range group. Ranking inside a size band matters because engagement rate falls as accounts grow, so a raw rate would mostly re-measure the follower count. It is a starting point for a look at follower quality, not a verdict on it.
- When does @bryan_johnson post?
- Most posts go out around 17:00 UTC, and Wednesday is its busiest day, at roughly 3.6 posts per day across the measured window.