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Secondhand smoke causes 1.66 million deaths per year worldwide
ScienceVila Real

Secondhand smoke causes 1.66 million deaths per year worldwide

El Periódico Mediterráneo - General9 September 2026 at 18:41

More than 2.7 billion people, including children, were exposed to secondhand smoke worldwide in 2023. This type of exposure occurs when someone inhales smoke involuntarily by being near a smoker.

According to a study published in the scientific journal The Lancet Public Health, exposure to secondhand smoke contributed to nearly 1.7 million deaths in 2023. This represents approximately 1.66 million deaths per year worldwide.

The research highlights that both adults and children were affected by this global public health issue. The study shows the extent of the impact that secondhand smoke has on the health of the world population.

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