There is a lot of evidence that second-hand smoking is harmful. [1] is a summary on this topic from 2006 and cites 194 papers. To describe the science on secon

There is a lot of evidence that second-hand smoking is harmful. [1] is a summary on this topic from 2006 and cites 194 papers. To describe the science on second-hand smoking to be anything other than solid is to simply lie about our knowledge on the health effects of smoking. To add to this, there is also significant evidence that SIDS is strongly correlated with parents who are smokers (and thus appears to be likely caused by smoking while pregnant, and second-hand smoke during infancy). [1]: https://www.ncbi.nlm.nih.gov/books/NBK44330/ https://www.ncbi.nlm.nih.gov/books/NBK44330/