饭后一支烟,快活似神仙
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#9 Re: 饭后一支烟,快活似神仙
英国也推广大麻合法化?
网上关于大麻和香烟有各种说法。Google头条认为大麻更有害:
https://sunrisehouse.com/quit-abusing-m ... igarettes/
According to the American Lung Association, smoking marijuana can be just as harmful to the lungs as smoking cigarettes, if not more so. First of all, marijuana smokers tend to inhale more deeply and hold their breath longer, which results in longer exposure to tar, a toxin from the smoke.
Nov 22, 2023
第二条认为大麻更安全:
https://www.ucsf.edu/news/2012/01/98519 ... gs-tobacco
Jan 10, 2012 — A large-scale national study suggests low to moderate use of marijuana is less harmful to users' lungs than exposure to tobacco.
后两条Health和CNN新闻又说很多美国人错误地认为大麻更安全:
https://www.health.com/marijuana-smoke- ... ke-7692695
Many Americans Believe Marijuana Smoke Is Safer Than Cigarette Smoke—They’re Wrong.
August 25, 2023
https://www.cnn.com/2023/08/14/health/m ... index.html
Many Americans wrongly believe exposure to marijuana smoke is safer than tobacco.
August 14, 2023
NIH网站的引用说很难定性哪个更有害,反正都有害。不过引用的书是2000年出版的,比较早。不过说都有害应该没错
https://www.ncbi.nlm.nih.gov/books/NBK224396/
Scientists have compared marijuana and tobacco smoking on the basis of many different factors but have failed to find consistent evidence that either substance poses a greater health risk than the other. On the one hand, marijuana joints have been shown to deliver at least four times as much tar to the lungs as tobacco cigarettes of equivalent weight. This difference is due to the lack of filters on joints and because marijuana smokers typically inhale a larger volume of smoke and take it more deeply into the lungs than tobacco smokers do. Marijuana smokers also tend to hold smoke in for a time before exhaling, exposing the lungs to even greater levels of cancer-causing agents.
On the other hand, because they are packed more tightly, commercial cigarettes produce more smoke than hand-rolled joints. That, plus the fact that most tobacco users typically smoke more cigarettes per day than their marijuana-using counterparts, means that over the course of a day most tobacco users take far more smoke into their lungs than people who smoke marijuana exclusively. Thus it is impossible to make precise comparisons between the damage to one's health caused by smoking marijuana versus the damage caused by smoking tobacco. And since an estimated 70 percent of marijuana users also smoke tobacco, it is difficult to conduct epidemiological studies that isolate the effects of marijuana smoking.
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