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The health effects of coffee include various possible health benefits and health risks. [ 1 ] A 2017 umbrella review of meta-analyses found that drinking coffee is generally safe within usual levels of intake and is more likely to improve health outcomes than to cause harm at doses of 3 or 4 cups of coffee daily.
And in between, most of the news about coffee was largely positive: That, instead of being harmful to your health, regular coffee consumption, in moderation, is actually good for you.
"Moderate coffee drinking has been related to health benefits," lead study author Lu Qi, M.D., PhD, interim chair of the Department of Epidemiology at Tulane University, told Fox News Digital.
Drinking more than four cups of caffeinated coffee in a day was associated with a lower risk for head and neck cancer, oral cavity cancer, and oropharyngeal cancers compared to not drinking coffee.
The world's primary source of caffeine is the coffee "bean" (the seed of the coffee plant), from which coffee is brewed. Caffeine content in coffee varies widely depending on the type of coffee bean and the method of preparation used; [ 240 ] even beans within a given bush can show variations in concentration.
Positive effects of caffeine on long-term memory have been shown in a study analyzing habitual caffeine intake of coffee or tea in addition to consuming other substances. Their effect on cognitive processes was observed by performing numerous cognitive tasks.
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