Caffeine is the "Drug" of Choice in Many Cultures
July 16, 2013
Doctors warn not to drink more than 4 cups of coffee per day.
From VOA Learning English, this is Science In The News in Special English. I’m Avi Arditti.
And I’m Faith Lapidus. Today, we report on caffeine and two popular drinks: tea and coffee. We tell about a study that found black tea is better for your health than coffee. We also tell about a separate finding that coffee drinkers may have a lower risk of oral cancer than other people. And we examine how climate change may affect one of the most popular kinds of coffee.
For years, caffeine has been the “drug” of choice in many cultures. Caffeine has been considered socially acceptable because it is found in drinks like tea or coffee. People who consume a lot of caffeine-based drinks may think they are addicted -- depending heavily on the substance. But if they stop using such drinks, they will experience only mild symptoms of withdrawal for a few days.
The real addiction may be emotional. Many people claim they cannot start their day unless they get their “fix,” which is, in many cases, a cup or two of coffee. Some people drink coffee throughout the day. Even young people who may not touch tea or coffee are still putting caffeine into their bodies when they have energy drinks, which have high amounts of caffeine.
Caffeine is a bitter substance found in coffee, tea, soft drinks, chocolate, kola nuts, and some medicines. It has many effects on the body, including helping to activate the central nervous system. This can make you more awake and give you increased energy.
最新
2013-11-25
2013-11-25
2013-11-25
2013-11-25
2013-11-25
2013-11-25