Hazards: Secondhand Smoke May Affect Hearing

Recent studies and research are starting to draw a link between secondhand smoke or exposure to cotinine, an indicator of exposure to tobacco, and that of hearing loss. Researchers writing in the July issue of The Archives of Otolarygology tested more than 2,000 teenagers and found that the higher the cotinine levels in the participant’s blood, the greater the likelihood there was some type of hearing loss.

Link: http://www.nytimes.com/2011/07/19/health/research/19hazards.html?_r=2&src=rechp