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If you are low in B-vitamins, your supply of cysteinethe limiting factormay dry up
[13] Male fertility is another area where both supplements have been studied
Consider supplementing with: Reaction time testing through various apps and websites Memory exercises like n-back training with performance tracking Mood and energy journals capturing daily patterns Work output metrics when applicable Objective measures help distinguish genuine cognitive enhancement from placebo effects or wishful thinking
Changes in physical performance of untrained volunteers: effects of L-carnitine
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