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Wen: Many of these studies found positive health effects at a moderate level of consumption, ... Wen: The concern with too much coffee is about consuming too much caffeine, ...
Excessive coffee consumption, generally above four to six cups per day, may increase the risk of side effects such as anxiety, restlessness, insomnia, and gastrointestinal discomfort, he explains.
Keep reading to learn what the experts say about the physical effects of drinking coffee, including a few surprising science-backed benefits that may be lurking in your morning cup(s) of coffee.
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.
For reference, a brewed 8oz (227ml) cup of coffee contains ~95 mg of caffeine (per USDA). [6] According to the Diagnostic and Statistical Manual of Mental Disorders, caffeine overdose can result in a state of excessive stimulation of the central nervous system and the essential feature of Caffeine Intoxication is the recent consumption of caffeine.
Drinking a few cups of coffee every day may help prolong a person's lifespan and health span by 1.8 years, on average, claims a review with industry funding.
Caffeine dependence can cause a host of physiological effects if caffeine consumption is not maintained. Withdrawal symptoms may include headaches, fatigue, difficulty concentrating, lack of motivation, mood swings, nausea, insomnia, dizziness, cardiac issues, hypertension, anxiety, backaches, and joint pain; these can range in severity from mild to severe. [18]
People can make wise decisions about their coffee and tea consumption that align with potential benefits and risks. Head and neck cancer includes cancers in areas like the mouth, throat, and voice ...