2:50 AM
Kat
Children exposed to passive smoking are at risk of developing hearing deficiencies during their adolescence. Hearing deficiencies among adolescents occur mostly in the low frequencies.The reason for this surprising discovery lies in the repeated ear infections caused by tobacco smoke during the early years of life.Researchers in New York monitored adolescents between the ages of 12 and 19, all of whom answered a series of questions relating to their state of health and family history.They also underwent hearing tests and a number of blood tests to determine their level of cotinine, a metabolite of nicotine.The purpose of these blood tests was...
