Evidence supporting the use of: Robusta coffee
For the health condition: Concentration (poor)

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Synopsis

Source of validity: Scientific
Rating (out of 5): 4

Robusta Coffee is used to support concentration primarily due to its caffeine content, which is well-documented in scientific literature for its cognitive-enhancing properties. Caffeine is a central nervous system stimulant that blocks adenosine receptors, leading to increased alertness, improved attention, and reduced fatigue. Numerous randomized controlled trials and meta-analyses have demonstrated that moderate caffeine consumption can significantly enhance vigilance, reaction time, and various aspects of cognitive performance, including concentration and attention, in both habitual and non-habitual users. Robusta coffee, compared to Arabica, contains nearly twice the caffeine content, making it particularly effective for these purposes. Although most studies do not distinguish between coffee species, the higher caffeine level in Robusta logically implies an even greater effect on concentration, assuming similar dosages. However, excessive caffeine intake may lead to side effects such as jitteriness, anxiety, and disrupted sleep, which could counteract its benefits on concentration. Overall, the use of Robusta coffee to support concentration is justified by robust scientific evidence pertaining to caffeine's effects on cognitive function.

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