Teenage smoking is a significant concern. An estimated 20 percent of high school students smoke, with almost 4,000 teenagers smoking their first cigarette every day, according to the U.S. Centers for Disease Control and Prevention. Those who begin smoking before the age of 21 have the most difficulty quitting, and almost one-third of youth smokers continue to smoke into adulthood and die prematurely from a smoking-related disease, reports the website MedlinePlus. There are a number of warning signs that a teenager is smoking.
Odors
The smell of smoke is a major indication of a smoking habit. The smell is particularly strong in hair and on clothing, but it can be noticeable in a teen's room or car, too. In addition, smokers tend to have bad breath, according to the Mayo Clinic.
Efforts to mask or eliminate the smell of smoke can tip off the parent of a teen. Teenagers who keep their windows open, especially when it seems odd or unnecessary, may be trying to air out the room. Teens may try to mask the odor with air fresheners, as well. Excessive use of breath mints, sprays or mouthwash may be an attempt to cover up smoker's breath, the Teenage Smoking website points out. Potent-smelling hard candies can serve the same purpose. Cologne may also be used to conceal the smell of smoke.
Appearance
Several aspects of a teenager's appearance may indicate a smoking habit. Cigarettes stain teeth, fingernails and fingertips, and smokers sometimes appear pale and sickly, notes the Mayo Clinic. Burn holes in a teenager's clothing are another warning sign, as are burn marks on furniture or in a teen's car.
Other Signs
Smokers generally carry a lighter or have a supply of matches, so spotting these items are almost as indicative of a smoking habit as seeing a pack of cigarettes.
A chronic cough or wheeze can develop from smoking. Smokers also tend to run out of breath.
A teen smoker will likely alter some established habits and form new ones. Smoking can sap a person's energy, affecting exercise routines and participation in team sports or other activities, according to the Mayo Clinic. If a teenager makes frequent trips outside or makes efforts to go out of sight while around other people, it may be to have a cigarette.
When a teen is unable to get away for a cigarette for a significant amount of time, certain nicotine withdrawal symptoms may be observable. These can include fidgeting, anxiety, irritability, a short temper, a somber mood, restlessness, inability to concentrate and insomnia, according to the Mayo Clinic.
