This cross-sectional study uses serum cotinine level to compare nicotine absorption among children who are exposed to secondhand tobacco smoke only or exposed to secondhand vapor only vs those who are exposed to neither.

Background Few studies have globally assessed the cardiovascular disease (CVD) mortality burden attributable to secondhand smoke. We aimed to address this research gap. Methods We used a systematic analysis design using data from the Global Burden of Disease…

New study shows that postnatal exposure to second-hand smoke alters DNA methylation, which may help explain its adverse health effects

A new study has found that exposure to second-hand smoke during pregnancy and actually smoking increase the risk of placental abruption, a complication that can be fatal to both parent and baby, to almost the same degree.

Nearly 3 billion people worldwide are still regularly exposed to second-hand smoke, a new study of 204 countries shows.