Cigarettes contain ingredients that can be harmful to bodies, especially those still developing. Most adults who are smokers began smoking in their teenage years, and about half of them will die from diseases associated with smoking, according to the National Health Service. The importance of cigarette education is highlighted by the fact that 30 percent of high school students identify themselves as smokers according to a 2001 U.S. Department of Health and Human Services survey.
Lung Health
Our lungs contain tiny hairs that filter contaminants in the air. Typically, the small particles of dust or dirt that collect in these hairs are removed through coughing. However, the additives in cigarette smoke can collect in these hairs, creating a thick sludge that the body cannot remove through its normal means. This means that the tar and other additives in cigarettes sit in the lungs, limiting lung capacity and adversely affecting the lungs' ability to deal with other air contaminants. The earlier someone starts smoking, the more pronounced the damage.
Brain Development
Additives in cigarette smoke coat the lungs and limit oxygen absorption. Because most of our brain development occurs after birth and before the age of 25, the teenage years are incredibly important for a developing brain. Oxygen deprivation can damage and kill brain cells that are not replaced or repaired later in life. Additionally, studies from the Centers for Disease Control and Prevention suggest that nicotine has a toxic effect on brain development.
Reproduction
Female and male smokers suffer negative reproductive effects as a result of their smoking habits, according to the National Health Service. Male smokers who began their habit in their teenage years have difficulty gaining and maintain erections, and suffer from a loss of sensitivity. This may make it difficult to achieve orgasm. Female smokers who began smoking as teens reduce their fertility, are more susceptible to cervical cancer and have more problems during pregnancy and birth than females who do not smoke.
Appearance
Cigarette smoking stains teeth and wrinkles skin. Years of oxygen deprivation as a result of lung damage from cigarette smoke will also give skin a pale, gray appearance. While some cosmetic effects may be reversible or concealable, the extent of the damage is directly related to how long the individual has smoked. Smokers who begin their habit as teens will start the damage earlier, making the effects more likely to be permanent.
