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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.
“This level maximizes the health benefits while minimizing potential adverse effects,” he says. Excessive coffee consumption, generally above four to six cups per day, may increase the risk of ...
Along with a temporary pick-me-up, research has continued to show the longer-term health effects of coffee include a decreased risk of cancer, heart failure, Type 2 diabetes and even death.
Conversely, other studies show there are potential adverse effects to regular coffee drinking, such as increased anxiety, a trigger for migraine, sleeping issues, and gastrointestinal issues.
Caffeine dependence can cause a host of physiological effects if caffeine consumption is not maintained. Commonly known caffeine withdrawal symptoms include headaches, fatigue, loss of focus, lack of motivation, mood swings, nausea, insomnia, dizziness, cardiac issues, hypertension, anxiety, and backache and joint pain; these can range in severity from mild to severe. [18]
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.
A look at the health benefits of coffee, including its cancer-fighting powers, and its connection to other life-threatening conditions. ... with short-term side effects ranging from mild anxiety ...
Even doses of caffeine relating to just one cup of coffee can increase sleep latency and decrease the quality of sleep especially in non-REM deep sleep. A dose of caffeine taken in the morning can have these effects the following night, so one of the main practices of sleep hygiene a person can do is to cease the consumption of caffeine.