The Facts about Smoking
In the UK today, smoking cigarettes is the greatest cause
of illness and premature death. There are many serious and fatal diseases linked to smoking
(see diagram below). Smoking related deaths are mainly due to cancers, heart disease and
Chronic Obstructive Pulmonary Disease (COPD).
Each year smoking kills approximately 106,000 people. Approximately half of all smokers die from
smoking related diseases. With long term smokers, on average, their life expectancy is about 10 years less than non smokers.
In the UK 8 in 10 non smokers live beyond the age of 70, but only 50% long term smokers live beyond the age of 70.
What is in tobacco smoke?
Tobacco smoke contains around 4,000 different chemicals. Many of these are poisonous
and some can cause cancer. Three of the main components are:
Nicotine
Increases the heart rate and
blood pressure and affects mood and behaviour. Nicotine is also used as an insecticide.
Tar
Many of the
substances in tar are known to cause cancer. It can also damage the lungs.
Carbon Monoxide
A gas that takes the
place of oxygen in the blood, making the lungs less efficient and stopping cells and tissues getting the oxygen that they
need to work properly. Carbon monoxide is the poisonous gas found in car exhaust fumes.
Other chemicals found in tobacco smoke
include:
Benzene
A poisonous gas found in petrol fumes. It is known to cause leukaemia
Ethanol
Used in anti-freeze
Ammonia
Used in anti-personnel spray and cleaning products
Formaldehyde
An
embalming fluid
Hydrogen Cyanide
An industrial pollutant
Polycyclic aromatic hydrocarbon
(PAH)
A cancer causing chemical also found in diesel exhaust and other combustion products
NB In addition to these chemicals,
there are various additional unwholesome substances that may be present as a result of the plantation environment and the
conditions in which the harvested tobacco leaves are stored and shipped.
The benefits of
stopping smoking
Stopping smoking is the greatest single step that you can take
to improve your health and life expectancy.
Once the daily intake of carbon monoxide and other
poisons stops, your body can begin to repair the damage done by smoking.
As soon as you
give up:
| Time Stopped |
| Low Risk | High Risks | Effects |
| 20 minutes | 20 minutes | Blood pressure drops to normal, pulse rate drops to normal, temperature
of hands and feet returns to normal |
| 8 hours | 8 hours | Carbon
monoxide level in blood drops to normal, Oxygen level in blood increases to normal |
| 24 hours | 24 hours | Chance of heart attack decreased |
| 48 hours | 48 hours | Nerve endings start to re-grow, smell and taste
improved |
| 2 weeks | 3 months | Circulation improves, exercise becomes easier, lung function increased by up to one-third |
| 1 month | 9 months | Cilia grow in lungs and airways increasing lungs’
self-maintenance. Energy levels increase, coughing, sinus problems and shortness of breath all decrease |
| 1 year | 1-1.5 years | Excess risk of heart disease is halved. Recovery
rate from heart/bypass surgery almost doubled. |
| 2.5 years | 5 years | Lung
cancer death rate for average former smoker almost halved. Risk of mouth or throat cancer halved. |
| 5 years | 10 years | Risk of stroke similar to non-smoker |
| 10 years | 10 years | Lung cancer death rate the same as non-smokers.
Pre-cancerous cells have been replaced. Risk of cancer of mouth, throat, bladder, kidneys and pancreas decreases. |
| 10 years | 15 years | Risk of heart disease is the same as that of a non-smoker |