Secondhand smoke kills nearly 900,000 people every year, yet one-quarter of people globally remain exposed. Some groups, such as non-smoking women and those in lower socioeconomic strata, are often at higher risk of exposure and related burden.
Secondhand smoke kills nearly 900,000 people every year, yet one-quarter of people globally remain exposed. Some groups, such as non-smoking women and those in lower socioeconomic strata, are often at higher risk of exposure and related burden.