EveryFiveDays

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Cognitive Performance

Daniel Reyes

A claim without a mechanism is a story, not a finding.

Daniel trained in cognitive psychology and spent six years in research before deciding that most people needed translation more than they needed another paper. He reads the studies behind the claims and reports what the evidence actually supports, including when the honest answer is that nobody knows yet.

Published work

Abstract editorial illustration for a Cognitive Performance article

The Evidence Behind Focus Supplements, Read Carefully

We went through the trials behind the most marketed nootropic ingredients. Some hold up modestly....

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Posted By Daniel Reyes
Abstract editorial illustration for a Cognitive Performance article

Note Taking Systems and the Illusion of Structure

Elaborate systems feel productive because organising is easier than thinking. Here is what the research...

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Posted By Daniel Reyes
Abstract editorial illustration for a Cognitive Performance article

Blue Light Glasses Reviewed Against the Studies

The category is built on a claim the evidence does not clearly support. We explain...

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Posted By Daniel Reyes
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Building an Attention Routine That Survives a Bad Week

Most focus advice assumes ideal conditions. This is a routine designed for the weeks when...

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Posted By Daniel Reyes

One email every five days

A short letter with what we published, what we are still testing, and the occasional thing we got wrong. No urgency, no filler.

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