Chapter 01
What is Tobacco Addiction?
Tobacco addiction is a chronic dependence on nicotine, the chemical found in cigarettes, vapes, and smokeless products.
It was used by 22.3% of people worldwide in 2020, with 7.8% of women and 36.7% of males. This highlights that tobacco doesn't discriminate and affects everyone.
Unlike occasional smoking, addiction traps users in a cycle of cravings, stress relief, and relapse. It affects anyone, regardless of gender, age, or background.
How Nicotine Affects the Brain
Nicotine hijacks the brain’s reward system by triggering dopamine (the “happy” hormone), creating fleeting pleasure.
But as tolerance builds, users crave higher doses. Withdrawal symptoms like anxiety or headaches appear once nicotine dips, making quitting difficult. Long-term use rewires brain circuits and deepens dependency.










