UW-Madison study links nicotine addiction to genetic variation in brain
Some smokers have more of an urge to light up right after they wake up, and UW-Madison researchers have identified a reason: genetic variation in a substance that breaks down nicotine in the brain. Source: LacrosseTribune.com News At Other State Sites: [wp-rss-aggregator source=”87908,87904,713,696,676″]
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