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My 16-month theanine self-experiment
randomized and blinded, N=1
The correct response would be, “That’s impossible, and the fact that normal scientific practices could lead to such a conclusion casts doubt on everything.” But the review sort of takes it at value and moves on. Both capsules are made by some company with a history of making at least a modest effort to sell supplements that contain what they say they contain, and that don’t have terrifying levels of heavy metals. For each trial, I recorded my subjective starting stress level on a scale of 1-5, then set an alarm for an hour, which is enough to reach near-peak concentrations in the blood.
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