
http://www.engvid.com Not sure what the difference is between "sick" and "injured"? This lesson will introduce you to some basic medical terms you need to know, like "wound", "cure", "heal" ...
Read morehttp://www.engvid.com Not sure what the difference is between "sick" and "injured"? This lesson will introduce you to some basic medical terms you need to know, like "wound", "cure", "heal" ...
Read moreView full lesson: http://ed.ted.com/lessons/what-would-happen-if-you-didn-t-sleep-claudia-aguirre In the United States, it's estimated that 30 percent of adults and 66 percent of adolescents are ...
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