Major diseases caused by smoking

Smoking affects how long you live

Research has shown that smoking reduces life expectancy by seven to eight years.

Did you know?

On average, each cigarette shortens a smoker's life by around 11 minutes.

Of the 300 people who die every day in the UK as a result of smoking, many are comparatively young smokers.
The number of people under the age of 70 who die from smoking-related diseases exceeds the total figure for deaths caused by breast cancer, AIDS, traffic accidents and drug addiction.
Non-smokers and ex-smokers can also look forward to a healthier old age than smokers.

 

Cardiovascular disease

Cardiovascular disease is the main cause of death due to smoking.
Hardening of the arteries is a process that develops over years, when cholesterol and other fats deposit in the arteries, leaving them narrow, blocked or rigid. When the arteries narrow (atherosclerosis), blood clots are likely to form.
Smoking accelerates the hardening and narrowing process in your arteries: it starts earlier and blood clots are two to four times more likely.
Cardiovasular disease can take many forms depending on which blood vessels are involved, and all of them are more common in people who smoke.

A fatal disease

Blood clots in the heart and brain are the most common causes of sudden death.

• Coronary thrombosis: a blood clot in the arteries supplying the heart, which can lead to a heart attack. Around 30 per cent are caused by smoking.
• Cerebral thrombosis: the vessels to the brain can become blocked, which can lead to collapse, stroke and paralysis. Damage to the brain's blood supply is also an important cause of dementia.
• If the kidney arteries are affected, then high blood pressure or kidney failure results.
• Blockage to the vascular supply to the legs may lead to gangrene and amputation.

Smokers tend to develop coronary thrombosis 10 years earlier than non-smokers, and make up 9 out of 10 heart bypass patients.