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Unexpected findings support concerns The researchers first found that, as expected, mice that were chronically exposed to cigarette smoke had severely damaged lungs and excessive inflammation resembling those in human smokers with emphysema

While the initial "hit" of enjoyment from smoking a cigarette is felt almost immediately, it also disappears rapidly, which, according to Ledgerwood, leads smokers to consume tobacco products frequently in a bid to achieve "the same stimulant experience." Get the worlds most fascinating discoveries delivered straight to your inbox

The prescription medications, Bupropion (Zyban) and varenicline (Chantix), work by reducing cravings and withdrawal symptoms

This may differ across state fact sheets

Ultimately, this technique is optional and depends on your preference and tolerance for potential irritation