Half of your brain stays alert and prepared for danger when you sleep in a new place, a study has revealed.
一项研究表明,当你在一个陌生的地方睡觉时,你的半边大脑会保持警觉并做好准备防范危险。
Conference organizer, Dr.Greg Pappas of the American non-governmental organization,or NGO, called Interaction says that while it is too early to tell whether the current outbreak will turn into a global pandemic, poorer countries in particular need to be prepared for the day when one does hit.
VOA: standard.2009.04.28
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