Smoking

We have all seen the adverts on TV and signs explaining how bad smoking is, but do you actually know why it is so bad?

Smoking increases your chances of developing conditions such as:

• Breathing problems
• Cancer
• Heart attacks
• Strokes

Smokers are more likely to lung cancer than non-smoker.

However, its not just the smoker who is at risk of these conditions. People around a smoker can also develop these as a result of passive smoking.

Smoking during pregnancy can cause miscarriages, low birth weight and affect fetus development.

Smoking around a baby, can cause sudden infant death syndrome, bronchitis, pneumonia and other respiratory illnesses.

Quick Questions

1. What are the conditions caused by smoking

2. Define Passive Smoking

3. What are the risks of smoking while pregnant.

So, what’s in these cigarettes.

Tabacoo is the main ingredient in cigarettes. Tabacoo smoke contains over 4000 chemicals, many of which are harmful.

The three main ones are:

Tar - Stick black material which            collects in the lungs and         irritates the narrow air ways.

Nicotine -Addictive drug, which                 speeds up the nervous               system. Its a stimulant               which increases heart               beats and narrows blood               vessels.

Carbon monoxide- Poisonous gas               which takes the place of               oxygen on red blood cells.               It limits the amount of               oxygen sent around the               body.

Quick Questions

1. State the three things in Tobacco

2. What is the drug which makes cigarettes so addictive

3. How does Carbon monoxide affect the body

Smoking can cause a variety of diseases.

Heart Disease - smoking causes a person’s arteries to become blocked. This stops blood flow and can lead to heart attacks or strokes.

Emphysema - Chemicals in the tobacco smoke affect the walls of your alveoli. This means they don’t inflate properly.

They become so weak, that they can burst when you cough. This means you can’t pass oxygen to the blood.

Respiratory infections. Tiny hairs called cilia pushing mucus us the wind pipe and let you swallow it.

Chemicals in the tobacco smoke stop the cilia from working. This causes the mucus to flow into your lungs and makes it harder to breath.

Smokers end up coughing up mucus and damages the lungs further.

Quick Questions

1. What are 3 diseases caused by smoking

2. How do strokes occur?

3. Whey are cilia important

Questions

1. State the effects of each chemical in tobacco

     a. Tar

     b. Nicotine

     c. Carbon monoxide

2. Suggest why smokers often cough a lot when they first wake in the morning

3. Describe how tobacco smoke can cause problems during pregnancy

4. What are the effects of second hand smoke

5. What is Emphysema

Extension

6. Explain in detail three ways that smoking can damage your health (6 marks)

7. Explain why some one may suffer shivers, fluctuations in body temperature, weight gain and mood changes as they try to quite smoking

8. Create a pamphlet explaining the effects of smoking.

9. Observe the table to the left. Draw a line graph of the data.

10. Predict how the percentage of male smokers in the UK will change by 2050. (Continue the graph to 2050)

11. Explain your prediction