We can't find evidence that holds up here. Proponents are reasoning from mechanism or analogy rather than direct human data, and the most credible skeptics raise objections we can't dismiss.
Although there are people that have tried this, I think it's been written about in various books. Not many people can stick to that schedule. Incidentally, I think it's called the Uberman schedule, not to be confused with the Huberman schedule because first of all my schedule doesn't look anything like that. And second of all I would never attempt such a sleeping regime.
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.
The other thing that is really important to understand is that we have not explored as a culture, the rhythms that occur in our waking states. So much has been focused on the value of sleep and the importance of sleep, which is great, but I don't think that most people are paying attention to what's happening in their waking states and when their brain is optimized for focus, when their brain is optimized for these DPOs, this duration, path, outcome types of engagements for learning and for changing, and when their brain is probably better suited for more reflexive thinking and behaviors.
10 minutes of bright outdoor light within the first hour of waking anchors the circadian phase and improves sleep onset that night.
Morning sunlight exposure shifts the cortisol awakening response forward, improving daytime alertness.
Long-term morning sunlight reduces age-related macular degeneration risk.
Sleep regularity predicts all-cause mortality more strongly than sleep duration.
Tracking deep sleep on a wearable accurately reflects EEG-measured slow-wave sleep.
Caffeine has a half-life long enough that consumption after 2pm measurably degrades deep sleep in slow metabolizers.