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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.
During pregnancy, a woman's mass increases by about 12 kg (26 lb). [39] The European Food Safety Authority recommends an increase of 300 mL per day compared to the normal intake for non-pregnant women, taking the total adequate water intake (from food and fluids) to 2,300 mL, or approximately 1,850 mL/ day from fluids alone. [40]
Wen: Many of these studies found positive health effects at a moderate level of consumption, which is generally defined as between two and four cups of coffee per day.
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]
Coffee's role in your daily hydration intake may be up for debate. However, you're not stuck with plain drinking water. "Anything we consider a clear liquid will contribute to our daily hydration ...
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The desired effects arise approximately one hour after consumption, and the desired effects of a moderate dose usually subside after about three or four hours. [4] Caffeine can delay or prevent sleep and improves task performance during sleep deprivation. [54] Shift workers who use caffeine make fewer mistakes that could result from drowsiness ...
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.