Added: Enrico Erdmann - Date: 05.09.2021 01:03 - Views: 12934 - Clicks: 980
The smoke from combustible tobacco products contains more than 7, chemicals.
Nicotine is the primary reinforcing component of tobacco; it drives tobacco addiction. E-cigarettes, which deliver nicotine in the absence of other chemicals in tobacco, have become popular in recent years see " What are electronic cigarettes? The cigarette is a very efficient and highly engineered drug-delivery system.
By inhaling tobacco smoke, the average smoker takes in 1—2 milligrams of nicotine per cigarette. When tobacco is smoked, nicotine rapidly reaches peak levels in the bloodstream and enters the brain. A typical smoker will take 10 puffs on a cigarette over the roughly 5 minutes that the cigarette is lit.
Among those who do not inhale the smoke—such as cigar and pipe smokers and smokeless tobacco users—nicotine is absorbed through mucous membranes in the mouth and reaches peak blood and brain levels more slowly. The rush of adrenaline stimulates the body and causes an increase in blood pressure, respiration, and heart rate.
National Institutes of Health. Drug Topics. More Drug Topics.
About NIDA. Research Report.
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