Videos about them are each racking up hundreds of thousands of views on TikTok. What are these Zyn pouches that experts are concerned about young people getting addicted to? Zyn is a nicotine ...
More: FDA seeks to limit nicotine in cigarettes, most cigars. Vapes and Zyn are excluded. Nicotine acts by binding to receptors in the brain and nervous system, Little said. When these receptors ...
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