Apart from the smell, taste, effects on hair and skin, and on moods, cigarette smoke has even more unpleasant effects on the body.
Nicotine itself does not cause cancer or lung disease. It is the other things that are in cigarette smoke that cause all the health problems.
Smokers are ten times more likely to get heart disease, lung disease, major heart attack or stroke. They are also more likely to develop diabetes.
Smoking is the most common cause of cancers of the lung, throat and mouth.
Female smokers have more trouble becoming pregnant, and have more painful periods. Smoking can harm the baby if they get pregnant and continue to smoke.
Smokers can also have problems with narrowing of the veins in hands and feet, so blood circulation is poor.
Passive smoking – that is, breathing in other people's smoke rather than actually smoking yourself – can also cause health problems.
Anti-smoking laws mean that smoking is not allowed inside most buildings, so smokers have to lurk about outside while their friends are inside having fun.
In South Australia it is now illegal to smoke in a car if there are children inside.