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With most addictive substances, nicotine starts to activate the brain's reward circuits and also increases dopamine levels which are the chemical messenger in the brain that reinforces rewarding behaviors

1 Menthol cigarette use is high among youth and African Americans

The effects of marijuana, such as feeling relaxed or euphoric, may last for a few hours, but THC stays in your body for days, weeks, or even months

New-generation EC devices were more efficient in nicotine delivery, but still delivered nicotine much slower compared to tobacco cigarettes

This is why early detection of gum disease and vaping -related changes is so important