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Caffeine is a central nervous system (CNS) stimulant of the methylxanthine class. It is mainly used as a eugeroic (wakefulness promoter) or as a mild cognitive enhancer to increase alertness and attentional performance.
Mar 19, 2022 · Up to 400 milligrams (mg) of caffeine a day appears to be safe for most healthy adults. That's roughly the amount of caffeine in four cups of brewed coffee, 10 cans of cola or two "energy shot" drinks. Keep in mind that the actual caffeine content in beverages varies widely, especially among energy drinks.
Jun 3, 2020 · Caffeine is a natural stimulant most commonly found in tea, coffee, and cacao plants. It works by stimulating the brain and central nervous system, helping you stay alert and prevent the onset...
Apr 26, 2022 · Up to 400 milligrams of caffeine a day is considered safe for most adults. However, people's sensitivity to caffeine varies. If you're bothered by headaches, restlessness or anxiety, you may want to reevaluate your caffeine intake.
Caffeine is a natural chemical with stimulant effects. It is found in coffee, tea, cola, cocoa, guarana, yerba mate, and over 60 other products. Caffeine works by stimulating the central nervous...
Oct 16, 2017 · Caffeine is a stimulant that occurs naturally in some foods. The Food and Drug Administration (FDA) recommends a maximum intake of 400 mg a day, or two to three cups of coffee. A moderate intake...
May 9, 2023 · Caffeine can kick start your senses within 15 minutes. See exactly what caffeine does to your body with this interactive graphic.
Feb 11, 2022 · Caffeine is a chemical compound that many people consume every day. It is most commonly consumed in coffee and tea, though it can also be consumed through other foods and drinks, certain medications, and even recreational drugs.
Aug 14, 2017 · Caffeine can have impressive health benefits, but high doses can also lead to unpleasant side effects. Here are 9 side effects of too much caffeine.
Caffeine is a mild stimulant to the central nervous system that quickly boosts our alertness and energy levels. Learn more about caffeine and health.
