Tobacco is made from the dried leaves of the tobacco plant.
Many smokers become ill or die from the effects of tobacco.
The effects of smoking depend on how much you smoke how long you have been smoking what strength and type of tobacco you smoke how deeply you breathe in the smoke how healthy you are whether there are certain illnesses in your family history. Smoking during pregnancy can lead to miscarriage or the baby being born dead or with serious illness. Babies of women who smoke, weigh less than non-smokers' babies. This includes the smoke that is breathed out and the smoke going directly into the air from a cigarette or pipe. Passive smoking can lead to lung cancer in those who don't smoke.