"In this [scientifically administered] study the [awareness] and mood effects of separate doses of 75mg. ...extract of guarana, 200mg. of Panax Ginseng and their combination... were assessed in 28 healthy young (18-24) participants [as alternative medicine.]...

"In comparison to placebo, all three treatments resulted in improved task performance throughout the day."

Guarana Herb Alternative Medicine for Mental Alertness

Guarana Herb Alternative Medicine for Mental Alertness Bibliography

Pharmacol. Biochem. Behav. 2004 Nov. By: Drs. Kennedy, Haskell, Wesnes & Scholey, Human Cognitive Neuroscience Unit, Northumbria U., Newcastle upon Tyne, NE1 8ST, UK.

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