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What are the health benefits of huperzine-A?

Tim Ferriss
Fitness
Taking 200 micrograms (mcg) of huperzine-A 30 minutes before bed can increase total rapid eye movement (REM) sleep by 20 - 30%. Huperzine-A, an extract of Huperzia serrata, slows the breakdown of the neurotransmitter acetylcholine. It is a popular nootropic (smart drug), and I have used it in the past to accelerate learning and increase the incidence of lucid dreaming. I now only use huperzine-A for the first few weeks of language acquisition, and no more than three days per week to avoid side effects.
The 4-Hour Body: An Uncommon Guide to Rapid Fat-Loss, Incredible Sex, and Becoming Superhuman

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The 4-Hour Body: An Uncommon Guide to Rapid Fat-Loss, Incredible Sex, and Becoming Superhuman

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.