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it's about understanding the concentration you need for your specific research protocol

New, severe, or persistent headache especially with visual changes warrants medical evaluation

Unlike a daily oral supplement, most people who need B12 injections get them once or twice a week or even every few weeks, says Foxx

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Pharmacological neuroenhancement involves the use of legal or non-prescription psychoactive substances, while brain doping explicitly denotes the use of illegal substances or prescription drugs for cognitive enhancement purposes [5]