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For the first time, a study presented "compelling evidence" that caffeine consumption is beneficial for memory.
Published in the issue of January 12, 2014 of the journal Nature Neuroscience, the study shows that consuming caffeine can improve memory and have a beneficial effect on capacity retention for up to 24 hours after consumption.
Research is considered an 'exclusive proof' that caffeine benefits to long-term memory because all involved participants took one tablet of 200mg of caffeine after seeing a series of pictures.

New research from the University of Birmingham, UK, published on Thursday, in the scientific journal "PLoS ONE", shows that there is no relationship between moderate coffee consumption and dehydration.
This study began because of a previous research that showed the acute effects of caffeine as a mild diuretic, and a common assumption that caffeinated drinks such as coffee, had this effect. However, the effect of coffee consumption in fluid balance cannot be compared directly with that of pure caffeine.