Tobacco is an incredibly addictive substance. Studies show that smoking tobacco can be Addictive like heroin and cocaine (Opens in a new tab)But what makes people crave cigarettes? And why do so many people struggle to quit smoking despite knowing the dangers?

The answer is that tobacco changes the way our brain works and makes us want more. US Food and Drug Administration (Opens in a new tab) (FDA)

“Addiction is primarily defined as a loss of control over substance use and continued use despite its effects,” Bernard Le Faull, chair of addiction psychiatry at the University of Toronto, told Live Science in an email.

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