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With a global consumption of an estimated 2.25 billion cups per day, coffee is one of the most popular drinks in the world. One likely explanation for its popularity is the caffeine content, which can increase attention and alertness. Beyond its short-term effects on mental performance, increasing evidence suggests that coffee could have long-term health benefits, including protection against neurodegenerative diseases such as Alzheimer's and Parkinson's disease.1 ,2 While the effects of coffee have been of interest for many years, its potential role in the prevention of multiple sclerosis (MS) has been relatively unexplored.
In their JNNP paper, Hedström et al3 report …