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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]
“The stimulating effects of coffee can last for several hours, meaning that even if you drink it early in the day, it might still be affecting your ability to relax and fall asleep at night.”
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.
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Here's what immunologists say.
Pages for logged out editors learn more. Contributions; Talk; Contents move to sidebar hide (Top) 1 coffee or caffeine. 1 comment. 2 Athsma and vaso-constriction. 2 ...
The study authors found that people who drank coffee every day had an 11 to 13 percent higher muscle mass than non-coffee drinkers. This, they concluded, may help lower the risk of developing ...
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.