Cigarettes are mainly made up of leaves from a tobacco plant that has a very strong chemical in it called nicotine. Nicotine is addictive and makes you want more – and more and more. But it’s really bad for you.
Cigarettes also have about 4,000 other chemicals in them and most of them are poisonous.
The same chemicals are also used in things like insect spray, toilet cleaner, lighter fluid, white ant poison, rocket fuel, and paint stripper. Just to name a few!