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Re: Can any meaningful conclusions of efficacy/harm ever be drawn form individual experience/"self experimentation"? @Brin Chikovski reaction time: https://humanbenchmark.com/ grip strength: https://www.amazon.com/gp/product/B00A8K4L84/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 PEF/FEV: https://www.amazon.…