Smoking has significant negative effects on the respiratory system, including increasing the risks of cancer, bronchitis, emphysema, and smokers' cough. Cigarettes contain nicotine, which is addictive, and tar that can cause cancer. Smoking also paralyzes the cilia in the lungs, preventing them from effectively cleaning the airways, and can lead to breakdown of lung tissue. Long-term smoking statistically shortens lifespans and is responsible for many annual deaths from smoking-related diseases like cancer, heart disease, and bronchitis.

1. +
Respiratory System
The effects of smoking

2. +
Objective-
The effects of smoking on the lungs

3. What is in a cigarette?

4. +
The effects on your lungs

5. +
Cancer
Bronchitis
Emphysema
Smokers cough
The effects of smoking:

6. +
Effects of smoking
 Nicotine is an addictive
drug,
 tar can cause cancer,
 the cilia become paralysed
and the airways cannot be
cleaned effectively.
 Smoking can lead to a
breakdown in the lung tissue
 Smoking can cause irritation
in the nose and throat, as
well as give you bad breath
and stained (yellowed) teeth.

7. +
Facts and figures:
 9 out of 10 people with lung cancer are smokers.
 25% of people who take up smoking, die from it.
 Most smokers live 10–15 years less than non-smokers.
 100 000 people per year (in the UK) die from diseases
caused by smoking, like cancer, heart disease,
emphysema and bronchitis.