Arielle Selya: The scientist who challenged the gateway theory
September 03, 2026 by snusforumet.se
Arielle Selya: The scientist who challenged the gateway theory
The gateway theory has shaped nicotine policy for years, often turning vaping into a presumed pathway to smoking rather than a potential route away from it. Challenging that assumption matters because policy should follow observed behaviour, not fears repeated until they sound like evidence. Research that separates correlation from causation can help clarify whether safer nicotine products are driving harm or displacing cigarettes. Public health needs that distinction before it builds restrictions around a theory.
