标签：lifespan 相关文章
This Scientific Americans 60-Second Science. I am Karen Hopkin. This will just take a minute. They say that older folks benefit from spending time with young people. And thats not just an excuse to stick grandma at the kids table at Thanksgiving. Now
Scientific American(五)月
Did you know birds sing in dialect? They do. The song of a great tit from the countryside is a far cry from that of his city cousin. And some song dialects can change nearly as fast as human slangthe Indigo Bunting changes tune from year to year. To
Scientific American(十)月
AIDS Drugs Offer Hope of Normal Lifespan in Africa Over the last 30 years life expectancy rates in Africa plummeted, as HIV/AIDS claimed millions of lives. But a new study says antiretroviral drug treatment can dramatically reverse that trend. Profes
VOA标准英语2011年(七月)
If you were to lay your digestive tract out in a straight line, it would form a tube spanning nearly ten meters. 如果你将消化道拉直成一条线，它的样子就像是一条长达将近十公尺的管子。 学习重点： 1.digestive tract 消
留美老师带你每日说英文
Being around other people has a lot of benefits -- from increased levels of happiness to a longer lifespan. 有其他人陪伴有很多好处：像是可以提升幸福感，甚至可以延长寿命。 学习重点： 1.benefit 利益；好处；优势
留美老师带你每日说英文
Britons are the fattest people in Europe, with one of the world's fastest obesity(肥胖) growth rates, according to a leading international think-tank（智囊团）. The UK comes top out of 20 European Union nations, with almost one in four people
英语新闻
By David McAlary Washington 02 May 2007 U.S. researchers have discovered a gene that promotes longer life in earthworms that eat much less than normal. Humans have similar genes, and VOA's David McAlary reports that, if they work the same way as in t
2007年VOA标准英语（五月）
And there are certain forms of the FOXO gene 我们发现活到90或者100岁人里 that have found to be more frequently present 最常有的 in people who live to be 90 or 100. 某种FOXO基因 And that's the case all over the world, 这是遍布全球
TED演讲科学篇