* A Journal of Psychopharmacology study found that guarana improved memory, mood and alertness at low (37.5 mg, 75 mg) vs. higher (150 mg, 300 mg) doses. However, another study examined the long-term use of guarana, caffeine, or placebo on the cognition of 45 older individuals. There were no significant effects of guarana on cognition
==Main Combinations==
*Improving physical and sporting performance : [[Eleutherococcus]] + Guarana*Obesity, Overweight : Guarana + [[Shan Zha]] + [[Orthosiphon]]*Tonic : Guarana + [[Ginseng]]*Chronic fatigue : Guarana + [[Royal Jelly]]
[[Category:Treatments]]
[[Category:herbal medicine]]
[[Category:Aphrodisiac]]