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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 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.
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 ...
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Here's what immunologists say.
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.
For healthy adults, 400 milligrams (mg) is widely regarded among medical professionals to be a safe daily value. Federal dietary guidelines equate this to roughly three to five eight-ounce cups of ...
A woman wearing sports bra and boyshorts, conventionally women's sportswear, but now worn as casuals or athleisure by women in the West. Clothing physiology is a branch of science that studies the interaction between clothing and the human body, with a particular focus on how clothing affects the physiological and psychological responses of individuals to different environmental conditions.