Another Cuppa

Coffee may boost brain's ability to store long-term memories, study claims

People who had caffeine after looking at images apparently better at distinguishing them from similar ones the next day.
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For this part of the study, the volunteers had to say whether each image was either new, old or similar to one they had seen the day before. According to Yassa, the caffeine and placebo groups scored the same except when it came to spotting the similar images. In this task, the caffeine group scored around 10% higher, he said.