Psychology Today states the following:
Nicotine is one of the most heavily used addictive drugs in the U.S., and the leading preventable cause of disease, disability, and death. Cigarette smoking accounts for 90% of lung cancer cases in the U.S., and about 38,000 deaths per year can be attributed to secondhand smoke. Most cigarettes in the U.S. market today contain 10 milligrams (mg) or more of nicotine. The average smoker takes in 1 to 2 mg nicotine per cigarette when inhaling.
It's is not bad for just chess players. It is bad for everyone.
Thank you! Accurate, succinct answer backed up by a quote from a reliable and relevant source. Just thought it should be acknowledged before it's inevitably buried in pages upon pages of nonsense.








So with a heroine user I have less problems because I get 0 Procent heroine inside me if he uses it. So go Ahead.
But who died and made you the moral police? Why should anyone care about what you deem "good" to use and "bad"? People like you are the reason people like me start to smoke.