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It's not news that second-hand smoke can be dangerous—even deadly. Now add one more price nonsmokers pay for living around people who light up: According to a new study from New York University's Langone Medical Center, teens who are regularly exposed to second hand smoke are nearly twice as likely to have hearing loss as teens who live in smoke-free environments.
The study involved 1,533 non-smoking adolescents between the ages of 12 and 19 who underwent hearing tests to determine auditory acuity at both high- and low-frequencies. Researchers also measured the subjects' blood concentrations of cotinine — a byproduct of the neurotoxin nicotine that is often used as a biomarker of smoke exposure.
Read more: http://healthland.time.com/2011/07/...ted-with-hearing-loss-in-teens/#ixzz1SePggeLR
The study involved 1,533 non-smoking adolescents between the ages of 12 and 19 who underwent hearing tests to determine auditory acuity at both high- and low-frequencies. Researchers also measured the subjects' blood concentrations of cotinine — a byproduct of the neurotoxin nicotine that is often used as a biomarker of smoke exposure.
Read more: http://healthland.time.com/2011/07/...ted-with-hearing-loss-in-teens/#ixzz1SePggeLR