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by lagniappe 606 days ago
I stared at the 8hz one, for the entire duration, and I feel a calm afterward, however I'm not sure if this is because I stopped doing/thinking for a few minutes with measured breathing or if it is me noticing the difference now that there's a lack of stimuli after the video ends.

What measurements or tests can I do to judge whether something is happening, or has happened after watching the videos?