Healthwise
To print: Use your web browser's print feature. Close this window after printing.

Tobacco Use in Teens

Table of Contents


Topic Overview

Nicotine is only one of the thousands of chemicals in tobacco, but it is the major component that acts on the brain. The lungs readily absorb nicotine from the smoke of cigarettes, cigars, or pipes. The tissues of the mouth can also absorb nicotine when a person smokes cigars or pipes or chews tobacco.

Nicotine reaches the brain in seconds and has a direct effect on the body for up to 30 minutes. When a person uses tobacco regularly, the levels of nicotine accumulate in the body during the day and persist overnight, exposing the person to the effects of nicotine for 24 hours.

In the body, nicotine acts as both a central nervous system stimulant and sedative. The person immediately feels the stimulant effect and pleasurable sensation. It increases alertness, relaxes muscles, improves memory and attention, and decreases irritability. The stimulant effect causes a sudden increase in blood pressure, breathing rate, and heart rate. The central nervous system stimulation is followed by depression and fatigue, causing the person to want another cigarette.

Nicotine is one of the most addictive substances. Some teens show early signs of addiction within days to weeks after starting to smoke. Repeated tobacco use causes a need for increasingly large amounts of nicotine to feel the same effect (tolerance). And repeated use causes withdrawal symptoms if the person tries to quit.

Smoking affects a person's appearance by causing bad breath, yellow teeth and fingernails, and wrinkles. Tobacco also leads to serious health problems, including:

Signs of use


References

Other Works Consulted


Credits for Tobacco Use in Teens

Current as of: February 11, 2021

Author: Healthwise Staff
Medical Review:
Patrice Burgess MD - Family Medicine
Adam Husney MD - Family Medicine
Kathleen Romito MD - Family Medicine
Michael F. Bierer MD - Internal Medicine, Addiction Medicine


Note: The "printer friendly" document will not contain all the information available in the online document. Some information (e.g. cross-references to other topics, definitions or medical illustrations) is only available in the online version.

© 1995-2021 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.
This information does not replace the advice of a doctor. Healthwise, Incorporated disclaims any warranty or liability for your use of this information.