Stimulating Controversy: the Jury's Still Out On Caffeine
What are we going to do with caffeine?
The short, pragmatic answer is that we’re going to keep ingesting it, without a doubt. It’s our favourite legal central nervous system stimulant. Caffeine is present in over 60 naturally-occurring forms of food and drink, from munchable kola nuts – now more famous as an additive for a certain soft drink – to the indispensable, irresistible beans of cocoa and coffee. (Interesting aside: coffee production sparked off the Fair Trade industry.) It’s been estimated that worldwide per-capita consumption of caffeine is around 70mg a day ““ that’s the same as everyone on this planet starting the morning with a small cup of java.
That we’re caffeine addicts is old news ““ what we need to know are the consequences. Surely a substance Generally Recognized As Safe by the FDA in 1958 is”¦safe. Right?
Caffeine stays in your bloodstream for 3-4 hours. Whilst there, it appears to indirectly stimulate the neurotransmitter dopamine, which accounts for elevated feelings of alertness and pleasure. But it affects hand-eye coordination, making you jittery (and no, it doesn’t actually cure a hangover ““ stick with water). However, caffeine in moderation has been linked to increased stamina. But it can upset sleep patterns and so impair long-term physical performance. And so on.
Two new studies published this week suggest caffeine continues to be the two-sided coin we know and love. On the one hand, it appears to lower the risk of ovarian cancer. On the other, as little as one and a half cups of coffee a day appears to double the risk of a miscarriage.
Caffeine’s here to stay – so we’d better stay alert. As with so many of the pleasurable drinks and foods we love, moderation is generally proved to be the best course.
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1 Comment
January 30th, 2009 at 3:47 am
This is more of the type of article on coffee I am use to seeing. It’s kind of like a love – hate relationship. Either way, I believe that you are right – coffee is here to stay.
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