This is Scientific American 60-Second Science. I'm Steve Mirsky. Got a minute? First, the bad news, it seems our bodies are actually designed to resist all attempts to
fit into our pants. At an international conference
on obesity this week, an Australian researcher reports that no matter what overweighed people try, diet and exercise, or exercise alone, eventually, their weight
loss has a plateau. Evolution may be why we have such a fat chance to lose weight. Our ancestors who stored fat most efficiently during times of plenty
will better able to survive when the picking is
slim. As a result, now when we diet, our bodies, thinking there is a famine of food, produce a hormone called "Grayling" that helps keep us
hefty. Now that's
where the good news comes in. Scientists at Descript Research Institute have produced the vaccine that gets rid of this fat
hoarding hormone. The research is report that male rat who got the vaccine were lighter and leaner than their untreated little mates. But we will have to wait for our human trials to see whether the vaccine is in fact the best thing since
slice bread. Thanks for the minute for Scientific American 60-Second Science. I'm Steve Mirsky.
9 w7 K+ M- ^3 r; k
这些天被折磨死了,今天才来学习答案。。。发现有好多的不知道什么意思,倒不是没有听清楚发音
* U& G! `7 r6 s1 t" k5 v
$ H5 _) Y" M1 X+ k+ s[
本帖最后由 无敌神猫 于 2006-11-23 10:36 编辑 ]