填空题
Caffeine is in many foods and drinks. More than 60 plants, including coffee beans, tea leaves, and cocoa beans (the source of chocolate), have caffeine. In addition, companies add it to some drinks. Many kinds of soda have caffeine. But now companies are putting caffeine in more products. For example, new kinds of mineral water and juice have caffeine.
As a result, caffeine consumption is very high. People in the U.S. are spending more time in cafes and coffee shops. And around the world, 80% of adults eat or drink products with caffeine every day. In one recent year, coffee consumption in the U.S. went up 37%.
The Effects of Caffeine
When we eat or drink caffeine, it wakes us up and makes our beams work a little faster. Caffeine also helps aspirin work faster, and it helps stop some headaches.
However, caffeine has some bad effect. If we have it at night, we may not be able to sleep. Too much caffeine can make use feel angry or upset. Many doctors say that caffeine is not good for children or women who are pregnant. If people eat or drink a large amount of caffeine, their hearts will start working too fast.
In addition to all these effects, caffeine is habit-forming. Just like cigarettes, after people start drinking caffeine, stopping can be very difficult. Also, after people start drinking, caffeine, they want more and more. A little caffeine is not bad for most adults. But people should cut down on caffeine if they are getting too much.
Cutting Down on Caffeine
Cutting down on caffeine is not easy, but these tips can help you:
* Caffeine is in more and more products. So check labels carefully.
* Try to drink only two to three cups of coffee, tea, or cola a day.
* Don’t stop suddenly. Try to cut down by about a half a cup per day.
* Try decaffeinated coffee or tea. (But keep in mind that even these drinks have a little caffeine.)