Caffeine study finds limited impact on complex cognitive functions

A new study published in the journal Nutrients suggests that the impact of caffeine on higher-order cognitive abilities may be more complex than previously believed. Research conducted by Liverpool John Moores University examined the effects of a 300 mg dose of caffeine on 51 recreationally active men aged 18 to 30.

The findings indicated that the caffeine dose, taken one hour before testing, did not improve cognitive abilities, reactive agility, mood, fatigue, alertness, or physical temperature. The study aimed to provide standardized results by controlling for sleep patterns and habitual caffeine intake, noting that previous research often varied in its control of sleep and placebo effects.