Secondhand smoke exposure linked to 1.7 million deaths globally in 2023
Source Summary
A study published in The Lancet Public Health found that more than 2.7 billion people, including children, were exposed to secondhand smoke globally in 2023. The exposure contributed to nearly 1.7 million deaths that year. The research highlights the widespread public health impact of secondhand smoke across the global population.
Why it matters
The findings demonstrate that secondhand smoke remains a significant global public health threat affecting billions of people and causing substantial mortality.



