This article has been cited by other articles in PMC. Abstract This is first meta-analysis to evaluate cancer risk associated with secondhand smoking across all cancers. A literature search was conducted for articles published before June on Pubmed, SCOPUS, Cochrane library, and CINAHL, and 40 articles on secondhand smoke and the prevalence of cancer among never smokers were selected for final analysis as per the inclusion criteria. Of the 40 articles, 27 were case-control studies and 13 were prospective cohort studies.
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Exposure to secondhand cigarette smoke over a lifetime increased breast cancer risk later in life
Brain tumors Secondhand smoke causes other diseases and death Secondhand smoke can be harmful in many ways. For instance, it affects the heart and blood vessels, increasing the risk of heart attack and stroke in non-smokers. Some studies have linked SHS to mental and emotional changes, too. For instance, some studies have shown that exposure to SHS is linked to symptoms of depression.
The news is based on a large, well-conducted study among almost 80, women. It assessed their lifetime smoking habits and exposure to passive smoking, following them to see who developed breast cancer in the years that followed. Researchers found that breast cancer risk had statistically significant links to both active smoking and inhaling the highest levels of passive smoke. The lack of a clear link with passive smoking overall is unsurprising and may be due to the difficulty in remembering past exposure, particularly exposure during childhood. Where did the story come from?