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Does caffeine REALLY affect reaction time?

We did an experiment and there was no real change in reaction time when consuming caffeine and when people did not consume caffeine.

Is this true or was our experiment inaccurate

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zexius
How many times did you experiment?

Caffeine usually does have a very small, but noticeable effect on reaction time. It might just be you didn't do the experiment enough times or you measured the results inaccurately. 

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