halfife. So, if you have, let's call it, 200 millig of caffeine right before your show, let's say 7, by uh 1:00 a.m., half
Cautious
100% accurate
8 claims across 3 endpoints
Claims by endpoint
What Bryan Johnson claims Caffeine does, and whether the research agrees.
| Endpoint | Stance | Research | Alignment | Claims |
|---|---|---|---|---|
| sleep quality | Decrease | 40 | With consensus | 4 |
| sleep | Decrease | 40 | With consensus | 3 |
| heart rate | Increase | 26 | With consensus | 1 |
What they've said
Mentions of Caffeine across Bryan Johnson's content.
show, let's say 7, by uh 1:00 a.m., half that caffeine is still in your system. So, that's 100 millig in your system
sleep, but I still feel the effects of caffeine." So, caffeine has a 6h hour halfife. So, if you have, let's call it,