20 percent of adolescents smoke As much as 20 percent of adolescents from 11 to 17 years of age smoke http://vardenafiluk.com/online-drugstores.html . The analysis of tobacco intake by adolescents and kids covered almost 7, 000 kids aged 11 to 17. Data on the existing smoking position and on exposure to passive smoking were collected for the years 2003 to 2006. Possible factors influencing the results were examined, including the social position of the family, the type of college attended by the adolescents, and the smoking status of close friends and parents.
The answer to the question, 'Are these chemicals bad for human beings?' is that we simply don't know. Hrubec and her study group at the veterinary university saw a decline in reproductive overall performance of her mice. Stumped by her initial results, Hrubec noticed animal care staff in her laboratory wetting their hands with a disinfectant before touching the mice. This observation led her to a letter released in Nature by co-author Patricia Hunt, a geneticist at Washington Condition University, who had made the same discovery. These two independent observations were the impetus for the analysis. When Hrubec tested whether the disinfectant may be causing reproductive decline, she came up with the unexpected finding. Hrubec and Hunt are co-authors of the scholarly research, which will come in an upcoming issue of Reproductive Toxicology, a leading journal on the effects of toxic substances on the reproductive system.