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caffeine

             with positive effects on the brain                  substance that everyone can use without suffering any negative
                Last year, a study from the Harvard School of Public   consequences.”The negative effects of caffeine consumption
             Health suggested that drinking between two and four cups of   But of course, there can be negative consequences from caffeine
             coffee a day may reduce suicide risk in adults, while more recent   consumption, particularly if ingested in high doses.The Mayo
             research found that ingesting 200 mg of caffeine each day may   Clinic stWate that consuming more than 500-600 mg of caffeine
             boost long-term memory.Other studies have also suggested that   a day may can start as early as 15 minutes after consumption and
             caffeine intake may protect against type 2 diabetes, Parkinson’s   last up to 6 hours.
             disease, cardiovascular disease and stroke.            However, previous research has linked even moderate
                                                                 amounts of caffeine to
      “Caffeine activates                                        negative health effects.Last
                                                                 year, Medical News Today
                                                                 reported on a study sug-
         many of the same                                        gesting that consuming 300
                                                                 mg of caffeine a day during
                                                                 pregnancy may increase
     behavioral and neu-                                         the risk of low birth weight
                                                                 babies, while other research
                                                                 suggests that drinking four
                                                                 cups of coffee a day may
       ropharmacological                                         increase the risk of early
                                                                 death. But Meredith told us
                                                                 that the effects of caffeine
    mechanisms that are                                          can vary in each individual,
                                                                 which may explain why
                                                                 there are mixed messag-
        activated by other                                       es surrounding whether
                                                                 caffeine is good or bad for
                                                                 us.For example, he said that
      reinforcers, includ-                                       individuals with anxiety
                                                                 disorders are more sus-
                                                                 ceptible to the anxiogenic
                                                                 effects of the compound.
        ing other drugs of                                       son smoking a cigarette and holding a cup of coffee.Cigarette
                                                                    Silhouette of per-

                                                                 smokers can metabolize caffeine twice as fast as non-smokers.“-
                     abuse.”                                     Caffeine can also metabolize at different rates among individuals







               Caffeine: the ‘socially acceptable psychoactive drug’
             With so much research claiming that caffeine consump-
             tion can benefit our health, and considering the number of
             products that contain the stimulant, it is no wonder caffeine
             consumption is so widespread.
                But Steven E. Meredith, postdoctoral research fellow
             at The Johns Hopkins University School of Medicine, told
             Medical News Today that, perhaps due to widespread con-
             sumption, many of us forget that caffeine is a psychoactive
             substance - a drug that crosses the blood-brain barrier to
             stimulate the central nervous system.
             He said:“Unlike most other psychoactive substances, caffeine
             use is socially acceptable, and the drug is widely used. In fact,
             caffeine is the most commonly used psychoactive substance
             in the world.
                Moreover, the vast majority of caffeine consumers use   for various reasons. For example, cigarette smokers metabolize
             the substance regularly without apparent harm. These factors   caffeine twice as fast as non-smokers,” he added.
             likely contribute to the perspective that caffeine is a benign   “However, caffeine metabolism is slower among infants,
                                                                 pregnant women and individuals with liver disease. In addi-
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