Which is healthier: Coffee or tea?
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However, there are plausible reasons why coffee and tea may be connected to health benefits, beginning with caffeine. Studies have focused more on caffeine than the other ingredients in coffee and tea. Results have found that caffeine directly enhances alertness and concentration while combating fatigue. It can also improve athletic performance, most likely related to an increase in adrenal hormone levels and a metabolic energy boost. Caffeine may even elevate mood.
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About the Author
Howard E. LeWine, MD, Chief Medical Editor, Harvard Health Publishing; Editorial Advisory Board Member, Harvard Health Publishing
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