提示：Richard Blumenthal，Roy Cooper，Noelle TalleyIn the United States, about half of all young people use social networking sites like MySpace and Facebook. Doctor Dimitri Christakis at Seattle...

研究人員稱，有超過半數的使用MySpace的年輕人經常談論網站中一些高危險行為。這主要指性和暴力等。Megan Moreno,Brian Primack,Archives of General Psychiatry,MarylandResearchers say more than half of yo...

讓我們一起繼續(xù)來研究偶們的牙齒。美國口腔、上顎顏面外科醫(yī)師聯合會表示，年輕人進行智齒拔除是最合適的。你拔牙了嗎？Removal is also advised if there is a chance that poorly aligned wisdom teeth will ...