refernece:
https://www.nlm.nih.gov/medlineplus/smoking.html
https://healthmad.com/health/second-hand -Røyking-økninger-the-risk-of-kronisk-bihulebetennelse /
https://www.helium.com/items/1741500-negative-effects-of-smoking-on-fertility-smoking-cigarettes-makes-people-infertile