View full lesson: http://ed.ted.com/lessons/what-happens-during-a-heart-attack-krishna-sudhir Approximately seven million people around the world die from he...
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Watch more Disaster Survival & Worst-Case Scenarios videos: http://www.howcast.com/videos/317493-How-to-Survive-a-Nuclear-Terrorist-Attack You can increase y...
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How Powerful Is Facebook http://bit.ly/1Hdg0rs Subscribe! http://bitly.com/1iLOHml Disasters, like terrorist attacks, ignite fear, chaos and confusion. So ho...
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