THIS DAY IN SCIENCE: 1st Conversation Transmission Underwater in 1956

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How do cigarettes affect the body? – TED Ed by Krishna Sudhir

Cigarettes aren’t good for us. That’s hardly news — we’ve known about the dangers of smoking for decades. But how exactly do cigarettes harm us, and can our bodies recover if we stop? Krishna Sudhir details what happens when we smoke — and when we quit. Lesson by Krishna Sudhir, directed by TED-Ed.

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View full lesson: https://ed.ted.com/lessons/how-do-cig…

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