Smoking causes numerous diseases and health problems, some fatal, among both smokers and non-smokers. For this reason, smoking is prohibited in a growing number of public places and a wide range of support services has been developed to help individuals quit smoking.
Many smokers say they started smoking before the age of 18, even though the law prevents anyone selling tobacco, cigarettes or cigarette papers to those under this age. Avoiding the temptation to smoke at an early age is therefore important to prevent you developing a habit.
People give up smoking for many reasons, from a desire to improve their health and to save money, to wanting to appeal to the opposite sex or reduce any potential harm on someone else's health.
In the UK one person dies from a smoking-related disease every four minutes. Smoking causes:
It can also worsen colds, chest problems and allergies like hay fever, bronchitis and emphysema, as well as have unpleasant side-effects such as wrinkles and bad breath. Smoking can also make you cough, sneeze or feel short of breath when you exercise.
Its a myth that smoking helps you lose weight, in fact it can cause cellulite. And kissing someone with a mouth like an ashtray isn't sexy.
Calculate how much your smoking habit is costing you in terms of money and you might be surprised how much you could save.
Breathing in other peoples cigarette smoke, called secondhand smoke, can also cause cancer.
From 1 July 2007 virtually all enclosed public places and workplaces in England became smokefree. For more information, see 'Smoking regulations in England'.
Scotland has been smokefree since 26 March 2006, Wales since 2 April 2007 and Northern Ireland since 30 April 2007.
When willpower alone is not enough, there are various treatments and plenty of support services to help you kick the habit.
NHS Stop Smoking Services - smokers are four times more likely to quit by using NRT together with support from NHS Stop Smoking Services - compared with using willpower alone. Find your nearest service by:
The Together programme is a government initiative, in England only, designed to help you quit smoking using a wide range of support materials.
The NHS Smoking Helpline (0800 169 0 169) in England and Wales offers free practical advice about giving up smoking, as well as a free information pack, while in Scotland, Smokeline (0800 84 84 84) provides free confidential advice and support
The 'Giving up smoking' website also offers people in England and Wales an Ask an expert service. The Smokeline website offers a similar private and confidential service in Scotland.