Public Health Success: Smoking Down Worldwide, 4 Million Fewer Deaths Per Year

Why Smoking Rates Are At All-Time Lows

https://well.blogs.nytimes.com/2013/06/25/why-smoking-rates-are-at-new-lows/?_r=0

Smoking Down And Nearly 4 Million Lives Saved Per Year 

As More Countries Embrace Tobacco Control Measures 

https://www.sciencedaily.com/releases/2016/12/161212115711.htm

Why Young People Are Now Less Likely To Smoke

http://www.bbc.com/news/health-39192635