CoffeeCoffeaCaffeineTeaDrug Administration ScheduleChlorogenic AcidAdministration, OralDouble-Blind MethodDrinking BehaviorDose-Response Relationship, DrugBeveragesTime FactorsTreatment OutcomeActivities of Daily LivingArea Under CurveProspective StudiesDrug UtilizationCross-Over StudiesDrug Therapy, CombinationColaCentral Nervous System StimulantsRisk FactorsAnti-Bacterial AgentsCaffeic AcidsPlacebosHalf-LifeBody WeightDrug EvaluationRadiation DosageDietLethal Dose 50Infusions, IntravenousFollow-Up StudiesDelayed-Action PreparationsDrug CombinationsInjections, IntravenousPlant ExtractsRandom AllocationAdministration, InhalationCohort StudiesDrug Interactions