There is nicotine in tobacco products, which is addictive. People also want to use tobacco products when they do not need nicotine. This can lead to addiction. This is because nicotine alters brain function and leads to increased appetite.
Tobacco Addiction - familydoctor.org
Cigarettes, for example, are engineered to deliver nicotine to the brain in seconds, making it difficult for nicotine addiction to develop and quit easily. Consumption of nicotine stimulates the release of dopamine, a neurotransmitter in the brain by smoking and vaping.
How to Quit Smoking - HelpGuide.org
Dopamine, like many other drugs, stimulates or "teaches" the brain to repeat the same behavior (such as smoking) over and over again. But there is a catch: Every time a person inhales an e-cigarette containing nicotine or nicotine, the brain "beats" dopamine and the evil circle continues.
Why is smoking harmful?
A typical smoker will inhale 10 or more breaths per cigarette, resulting in at least 250 “strokes” per person smoking around one pack (25 cigarettes) per day. That is a lot of "training" on the brain, which increases the risk of addiction.
How do I know if I'm addicted to nicotine? | Daily health
If a person smokes a cigarette or vape, the nicotine booster may be more dangerous than the user thinks. The use of tobacco is extremely harmful because of the hundreds of compounds found in tobacco and tobacco smoke. Some of these compounds associated with lung damage can also be found in e-cigarette smoke.
Health risks and diseases of smoking
Tobacco users' serious health problems are caused by a combination of toxic chemicals, not nicotine, which can be deadly, such as chronic obstructive pulmonary disease (COPD) and cancer.
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