Bryan Johnson engagement report
@bryan_johnson - 2.1M followers on X
Measured over 46 original posts from a 30-day window, last computed on September 1, 2026.
Engagement
A typical post picks up 3.7K interactions against 2.1M followers, an engagement rate of 0.176%. Measured over 46 original posts, its engagement rate beats 91% of 3,774 tracked accounts of a similar size. Comparing inside a size band matters here: engagement rate falls as accounts grow, so a raw rate would mostly just re-measure the follower count. Posts are seen about 305K times each, and 1.20% of those impressions turn into an interaction. That is about 14.6% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 2.2 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 Thursday is the busiest day of the week. Of the 46 posts sampled, 52% carry an image or video, 9% are part of a thread and 11% link out. The account's strongest tracked post pulled 101K interactions, about 28x its own typical post.
Measured over 46 original posts from a 30-day window, last computed on September 1, 2026.
Compared with accounts its own size
Bryan Johnson's engagement rate beats 91% of the tracked X accounts closest to it in follower count (3,774 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 62% 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 0.176%, Bryan Johnson sits above the 50th percentile of the 36,654 accounts in this comparison. That places it in the above the median band, which runs 0.08% to 0.433%.
Show the percentile table
| Percentile | Engagement rate |
|---|---|
| 10th percentile | 0.002% |
| 25th percentile | 0.012% |
| 50th percentile | 0.08% |
| 75th percentile | 0.433% |
| 90th percentile | 2.10% |
| 99th percentile | 160.5% |
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 Thursday 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% | 51K |
| 01:00 UTC | -2% | 52K |
| 02:00 UTC | -3% | 50K |
| 03:00 UTC | -4% | 53K |
| 04:00 UTC | -6% | 43K |
| 05:00 UTC | -4% | 42K |
| 06:00 UTC | -4% | 48K |
| 07:00 UTC | -5% | 52K |
| 08:00 UTC | -4% | 61K |
| 09:00 UTC | -3% | 70K |
| 10:00 UTC | -2% | 72K |
| 11:00 UTC | -3% | 78K |
| 12:00 UTC | -2% | 86K |
| 13:00 UTC | -2% | 94K |
| 14:00 UTC | -4% | 97K |
| 15:00 UTC | -2% | 101K |
| 16:00 UTC | -3% | 98K |
| 17:00 UTC | -2% | 91K |
| 18:00 UTC | -1% | 85K |
| 19:00 UTC | -1% | 80K |
| 20:00 UTC | -1% | 74K |
| 21:00 UTC | -1% | 66K |
| 22:00 UTC | -1% | 57K |
| 23:00 UTC | -2% | 52K |
Show engagement by day of week as a table
| Day | Vs author median | Posts |
|---|---|---|
| Sunday | +4% | 231K |
| Monday | 0% | 288K |
| Tuesday | -2% | 278K |
| Wednesday | -1% | 251K |
| Thursday | -1% | 245K |
| Friday | -3% | 253K |
| Saturday | +3% | 227K |
Best tweets
- Aug 15, 202628x their median
https://t.co/Wma9jFMlaN
- Jun 9, 202623x 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, 20249.8x their median
On @netflix Jan 1 2025 is the year of don’t die https://t.co/RJosMclnJb
- Aug 20, 20266.7x 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
- Aug 6, 20265.6x their median
I know some of you find me insufferable sorry about that
- Jul 21, 20265.5x 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, 20265.4x their median
Kate’s period blood is in my -80 °C freezer. Around 10 mL. https://t.co/OdLxO9qyJu
- Aug 30, 20264.9x 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
- Aug 4, 20264.8x their median
Best article I've read in the Times in years https://t.co/FJV3wDoRXn https://t.co/LZyvo6cUtA
- Jul 20, 20263.7x their median
Getting diagnosed with an incurable disease is the best thing to happen to me in a long time. My project shifted overnight from longevity staples to disease resolution and frontier biotech. We have so many awesome things cooking.
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 3.7K interactions against 2.1M followers, an engagement rate of 0.176%. Measured over 46 original posts, its engagement rate beats 91% of 3,774 tracked accounts of a similar size. Comparing inside a size band matters here: engagement rate falls as accounts grow, so a raw rate would mostly just re-measure the follower count. Posts are seen about 305K times each, and 1.20% of those impressions turn into an interaction. That is about 14.6% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 2.2 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 Thursday is the busiest day of the week. Of the 46 posts sampled, 52% carry an image or video, 9% are part of a thread and 11% link out. The account's strongest tracked post pulled 101K interactions, about 28x its own typical post.
- What is Bryan Johnson's engagement rate on X?
- Bryan Johnson (@bryan_johnson) has an engagement rate of 0.176%, based on the median interactions across 46 original posts from the last 30 days against 2,080,564 followers. Replies, reposts and quote-posts of other people are excluded from that sample.
- Is that a good engagement rate?
- At 0.176%, Bryan Johnson sits above the 50th percentile of the 36,654 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 91% of the tracked X accounts closest to it in follower count (3,774 accounts), which puts it in the top 10% for its size 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 Thursday is its busiest day, at roughly 2.23 posts per day across the measured window.