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 A new study shows that caffeinated drinks can enhance memory. It doesn't matter whether it's from coffee, tea, soda or chocolate, says the lead author Michael Yassa. 

According to USA Today, Yassa and colleagues at Johns Hopkins University recruited young study participants who didn't regularly consume caffeinated products. They gave them a series of images, then 200 milligrams of caffeine in tablet form. That's about the amount of caffeine in a strong cup of coffee. 

The next day, they were asked to identify the images from the day before, some of which had been altered. As published in the journal Nature Neuroscience, the people who consumed caffeine were more likely to correctly identify the items as different from the original picture. 

The brain's ability to recognize the difference between the similar but not identical items reflects a deep level of memory discrimination, Yassa says. Other research shows that low doses of caffeine benefit attention and focus, but no other studies have documented long-term memory retention. 

At this time, dietitians say caffeine intake has its perks, but for some people caffeine has its risks. No one study should dictate a personal decision to include or exclude it from your diet.
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