他们说，早晚有一天可以通过提取咖啡中的化学物质并释放到空气中，来缓解人们的疲劳。
Scientists in Tsukuba, Japan, kept 16 laboratory rats awake for 24 hours, by keeping them in a cage filled with an inch of water, then exposed half of them to the smell of roasted coffee.
日本筑波的科学家们把16只小白鼠放到有1英寸深的水的笼子里，这样保证它们24小时不睡觉。然后，将一半的老鼠放在烘培咖啡的香气中。
After taking samples of the rats' brains, they found that the smell of coffee boosted the activity of key genes that promote cell survival in the body and reduce anxiety, New Scientist magazine reports today.
在对小白鼠大脑取样后，他们发现咖啡的气味，增强了关键基因的活动，这种基因活动可以促进体内细胞存活，并且减少焦虑。