CNN CNN Special Report April 12, 2015 01:28:00
And those that smoke after age 16. what we call early versus later on set. >> gruber's brain scan show the white matter, the highways that help the brain communicate from one to the other are impaired in those smoking early. >> maybe there's connectivity differences. >> that's your concern it sounds like. that the highway, the white matter highways are just more disrupted in people who start smoking early. >> that's what we see. >> perhaps not surprising, given what we know about the young developing brain. >> that's a very delicate time in brain development and that's not a good time to be ta...
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