Carcinogens.
All evidence apparently says this is not the case.
Cigarette smoke contains tar, which can cause irritation to the nasal passage and the lungs, and could potentially harm them.
Inhaling smoke from any substance causes damage to your lungs. weed is better for u because it is a plant not a hole bunch of junk like tobacco i have never done weed in my life but this is what ppl told me and if any one of u smoke weed and get caught say dont panic its organic
Apex :) Nicotine is the addictive substance that is found on tobacco.
No tobacco is safe to smoke. Tobacco causes a variety of diseases, including cancer of the lips, mouth, tongue, esophagus and lungs.
side stream smoke-smoke coming from the burning tip of a cigarette Mainstream smoke-smoke that comes from the smokers lungs CHEMICALS
You damage your lungs.
Wood smoke is much worse than tobacco second hand smoke. Wood smoke contains more than twelve times as many carcinogenic compounds, and is chemically active up to forty times longer in the lungs than tobacco.
enviromental tobacco smoke
tar.
Tar is a sticky black substance which sticks to your lungs, from cigarette smoke. It can turn your lungs from pink to black, causing many health problems. It can cause lung cancer which can cause death. Tar can also cause very technical medical problems within the lungs!
There are several harmful pollutants in cigarette smoke including tar and nicotine.