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Andrew Huberman, Ph.D.@hubermanlabX

The value of reading, and of writing things down that we read, or hear, cannot be overstated. Two expert guests (who specialize in speech

what it claims

Taking notes by hand after reading or listening to information can significantly improve memorization and the integration of what has been learned.

holds up

This advice is based on the neuroscientific principle of "deep encoding." Studies in cognitive psychology (e.g., Mueller & Oppenheimer) and recent research using brain imaging…

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This advice is based on the neuroscientific principle of "deep encoding." Studies in cognitive psychology (e.g., Mueller & Oppenheimer) and recent research using brain imaging (e.g., studies published in Frontiers in Psychology) suggest that handwriting activates more brain regions—particularly those related to movement, vision, and episodic memory—compared to keyboard typing. This process, which is slower and more demanding, forces the brain to synthesize and process information rather than transcribing it passively. Although the scientific consensus validates the benefits of handwriting for long-term memorization, it is important to note that effectiveness also depends on the quality of cognitive engagement during note-taking. Some work nuances the exclusive advantage of handwriting depending on the context, but the idea that the physical effort of writing promotes better encoding is solidly supported by behavioral and observational evidence.

the sources

  1. 1Pandi-Perumal SR, Spence DW, Srivastava N, et al. 2022
  2. 2Dewar M, Alber J, Cowan N, Della Sala S. 2014
  3. 3Weng L, Yu L, Rong J, et al. 2025

Claimed by Andrew Huberman, Ph.D. Noli grades the claim, never the person.

Decoded by Noli · July 18, 2026 · the original post

What the graded evidence says

Evidence
C
Effect
yoga nidra on relaxation/well-being (small studies); wakeful rest after learning on later memory retention (RCT and meta-analysis) — yoga nidra evidence limited and low-quality; a quiet wakeful-rest period after learning reliably but modestly improved delayed memory retention in meta-analysis
Measured on
healthy adults; small and heterogeneous samples

What’s uncertain

Yoga nidra trials are small and methodologically weak, and "NSDR" is a branding of existing relaxation practices, not a separately validated technique. The wakeful-rest memory effect is real but modest.

Andrew Huberman, Ph.D. in the Register144 claims graded · solidity 82/100See their record →

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