UC San Diego Study Tracks 30-Year Increase in U.S. Support for Smoking Restrictions

Researchers at the University of California San Diego’s Herbert Wertheim School of Public Health and Human Longevity Science have developed a new method to track shifts in social attitudes toward cigarette smoking and secondhand smoke exposure across the United States. A study published in the journal *BMJ Public Health* details how this measurement tool analyzed data from the past 30 years, revealing a consistent increase in support for smoking restrictions in all 50 states.

The research team designed and validated this metric to quantify how public perception regarding tobacco use has evolved since the mid-1990s. By applying this framework to historical data, the study tracks the progression of social norms as they moved toward greater acceptance of smoke-free environments. The findings provide a standardized way to observe these trends across different regions, documenting the widespread adoption of policies that limit smoking in public and private spaces over the three-decade period.

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Date: June 21, 2026

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