1. Fuentes

1.1.People are different: tyrosine’s modulating effect on cognitive control in healthy humans may
depend on individual differences related to dopamine function.
1.2.Tyrosine supplementation mitigates working memory decrements during cold exposure
1.3.Tyrosine, phenylalanine and catecholamine synthesis and function in the brain
1.4.Huperzina-A capsules enhance memory and learning performance in 34 pairs of matched
adolercent students.
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1.5.Huperzine A for treatment of cognitive impairment in major depressive disorder: a systematic
review of randomized controlled trials.
1.6.Treatment with Huperzine A improves cognition in vascular dementia patients.
1.7.Neuropreotective effects of hupersine A. A natural cholinesterase inhibitor for the treatment
of Alheimer’s disease.
1.8.Huperzine A provides neuroprotection against several cell death inducers using in vitrio
model systems of motor neuron cell death.
1.9.Phosphatidylserine in the brain: metabolism and function.
1.10. Phosphatidylserine and the human brain.
1.11. The effects of phosphotidylserine supplementation on cognitive functioning prior and
following an acute bout of resistance training in Young males
1.12. De Book K, et al. Acute Rhodiola rosea intake can improve endurance exercise
1.13. (Rhodiola rosea): traditional use, chemical composition, pharmacology and clinical
efficacy. Phytomedicine.
1.14. Caffeine: Cognitive and physical performance enhancer or psychoactive drug.
1.15. Efficacy of a green tea extract rich in catechin polyphenols and caffeine in increasing
24-h energy expenditure and fat oxidation in humans.
1.16. Black pepper and its pungent principle-piperine: a review of diverse physiological