The Buzz on Caffeine

Do your parents or teachers start the day with a cup of coffee? There’s no question that coffee is a popular drink—the National Coffee Association estimates that Americans drink 400 million cups of coffee a day. It’s the caffeine in coffee that provides the energy boost that many people claim they need to function. Caffeine has that perk-up effect because it is a stimulant. It blocks a brain chemical, adenosine, which causes sleepiness. Caffeine is found in tea leaves, coffee beans, cacao (used to make chocolate), and cola nuts (which come from the plant that gives soda its flavor). Caffeine is also found in many foods and drinks—non-cola sodas like root beer and orange soda, hot cocoa, and ice cream—and some medicines. The latest place to find caffeine is in energy drinks. Caffeine’s Effects—Not Totally Harmless Caffeine is a mild stimulant and not a drug, so its use isn’t regulated like prescription drug use is. Still, consuming too much caffeine can make you feel jittery or jumpy—your heart may race and your palms may sweat. If caffeine is taken in combination with other substances, like alcohol, it can really be dangerous because mixing a stimulant and a depressant like alcohol confuses the brain. A recent report from the Substance Abuse and Mental Health Services Administration shows that emergency room visits for high doses of caffeine have increased sharply. The likely cause is caffeine-infused energy drinks mixed with alcohol. Those most affecte...
Source: NIDA Drugs and Health Blog - Category: Addiction Authors: Source Type: blogs