过量喝咖啡或增加早亡风险

 　　Surprising headline for all of you possibly enjoying your morning coffee right about now,myself included. A new study says if you drink more than four cups a day, it might increase the risk of an early death. ABC News Senior Medical Contributor Dr.Jennifer Ashton

　　is with us to to make sense of all of this. And a lot of people, they say, drink three or more cups a day. Should we be concerned about this new study?

　　Myself included,Laura.First of all,It's important to realize what this study brought up is that

　　we might be drinking more than we think. If you drink one of these on your way to work, this could be equivalent¹ to two and a half cups. So we might be way over that. But to break down the study, we have to go through pros² and cons³. First of all, big study.

　　They followed people for a long time and worked at various age groups. (40,000 people). Absolutely and and they looked at people, it's valid⁴.

　　Reputable. We like big numbers in medicine however big negative here. This was a study based on observation.

　　It did not show cause and effect. That's very, very important to keep in mind.

　　It's also confusing because I feel like, as a broadcaster, we've done stories in the past that say, hey, drink your coffee, there's a medical benefit. That’s right. So how do you sus through the information.

　　One day, it's one thing. One day, it's another. We have to remember more studies at this point tip the scale in favor of caffeine. There’s been a lot of researches which show that drinking cups of coffee decreases the risk of type two diabetes⁵.

　　It may reduce the risk of certain types of cancer, like prostate cancer certain skin cancers. And a study out of Harvard this year showed a reduced risk of suicide⁶ in people who drink coffee.

　　All of that sounds really really good. So it is a way to take balance. Jennifer, just moderation is key? You got it.

　　You hear doctors say that all the time: in moderation,especially if you don't have a heart problem, blood pressure problem, if you don't have heart problems, blood pressure problems. I will continue to drink my five cups a day, sister.

　　Cheers. Enjoy. Great information from Dr. Jennifer Ashton.

1 equivalent   

adj.（to）相等的，等价的；n.相等物，等值物

参考例句：

• Nodding your head is equivalent to saying "yes".点头就等于说“赞同”。
• You will receive the full equivalent of your money.你将收到与你的款项价值完全同等的物品。

2 pros   

abbr.prosecuting 起诉；prosecutor 起诉人；professionals 自由职业者；proscenium （舞台）前部n.赞成的意见( pro的名词复数 )；赞成的理由；抵偿物；交换物

参考例句：

• The pros and cons cancel out. 正反两种意见抵消。 来自《现代英汉综合大词典》
• We should hear all the pros and cons of the matter before we make a decision. 我们在对这事做出决定之前，应该先听取正反两方面的意见。 来自《简明英汉词典》

3 cons   

n.欺骗，骗局( con的名词复数 )v.诈骗，哄骗( con的第三人称单数 )

参考例句：

• The pros and cons cancel out. 正反两种意见抵消。 来自《现代英汉综合大词典》
• We should hear all the pros and cons of the matter before we make a decision. 我们在对这事做出决定之前，应该先听取正反两方面的意见。 来自《简明英汉词典》

4 valid   

adj.有确实根据的；有效的；正当的，合法的

参考例句：

• His claim to own the house is valid.他主张对此屋的所有权有效。
• Do you have valid reasons for your absence?你的缺席有正当理由吗？

5 diabetes   

n.糖尿病

参考例句：

• In case of diabetes, physicians advise against the use of sugar.对于糖尿病患者，医生告诫他们不要吃糖。
• Diabetes is caused by a fault in the insulin production of the body.糖尿病是由体內胰岛素分泌失调引起的。

6 suicide   

n.自杀，自毁，自杀性行为

参考例句：

• The number of suicide has increased.自杀案件的数量增加了。
• The death was adjudged a suicide by sleeping pills.该死亡事件被判定为服用安眠药自杀。