Is second hand smoke really harmful, and if so how does it compare to car exhaust fumes?
I've recently been confronted with a lot of varied and unsupported opinions surrounding the harmful effects of second hand cigarette smoke. In some countries it is now even illegal to smoke in your own car if you have a child with you. I can't help wondering if perhaps we should be more concerned about the actual car than the cigarettes. I would like to drive in the carcinogenic free lane please?
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Well, I have seen a study that actually proves cancer risk is SIGNIFICANTLY higher in urban eras vs rural areas. That being said, I've also seen studies like these about secondhand smoke
http://www.bmj.com/cgi/content/full/326/…
“No significant associations were found for current or former exposure to environmental tobacco smoke before or after adjusting for seven confounders and before or after excluding participants with pre-existing disease. No significant associations were found during the shorter follow up periods of 1960-5, 1966-72, 1973-85, and 1973-98.”
http://www.nber.org/papers/w14790
“Workplace bans are not associated with statistically significant short-term declines in mortality or hospital admissions for myocardial infarction or other diseases.”
With that in mind I'd say there were a million in a half cancer causers around that are 100 times worse than secondhand smoke. Read meat and milk (ie which has a cancer Relative Risk of 2.6, yet secondhand smoke goes from 1.19 to 0.75??).
The freakish news about secondhand smoke is a flat lie and most people know this. It was cooked up by health officials to get the "smokers" to quit and really has nothing to do with non-smokers. They figure discrimination and harassment is the best way to approach the cancer issues, yet its funny there is only about 14% of the population left in the US who are smokers yet cancer rates haven't declined at all.
The health effects of tobacco are the circumstances, mechanisms, and factors of tobacco consumption on human health. Epidemiological research has ...
