Smoking

• What have the law done to reduce smoking and why?

  • They have made all indoor areas no smoking areas to prevent passive smoking to non smokers. This prevents people who don't smoke from inhaling harmful gasses
  • Supermarkets have to have all nicotine products behind a shutter to prevent people from buying more and getting addicted
  • Cigarette manufactures have to ensure that every product has to have health warnings to worn smokers on the negative effects.
• What is nicotine?

  • The type of drug in a cigarette
  • It is a stimulant
  • It causes the release of adrenaline
• What is a Stimulant?

  • A drug/substance that makes you more alert
  • Reduces anxiety by acting on synapses in your brain
• Effects of nicotine

  • Blood pressure increase because of release of adrenaline
  • Increases heart rate
  • Affects blood flow to your organs by narrowing arteries which in turn makes your heart work harder
  • More addictive than drugs such as heroine which makes it very hard for smokers to quit
• Nicotine withdrawal symptoms

  • Mood swings
  • Irritations
  • Weight gain/loss
  • Anxiety
• What other harmful deposit comes from smoking?

  Tar, it gets deposited in your trachea and your lungs
• What is the cilia?


  Tiny finger like projections from the cells that line the trachea that sweep mucus up the trachea and away from your lungs
• How does tar effect your body?

  • Damages cilia by making them lie flat against the trachea
  • This prevents mucus being cleared from your trachea which leads to harmful pathogens damaging your lungs
  • Causes alveoli to break down into fewer, larger air sacs. This means the surface area of which oxygen diffuses into the blood decreases. This is called emphysema.
  • Tar is also a Carcinogen, a chemical that causes cancer
• What is mucus?

  • Primary defence system of your body
  • Traps potential pathogens or diseases causing microbes
• Affects of carbon monoxide in cigarettes

  • Red blood cells take up carbon monoxide in alveoli more easily that oxygen.
  • Leads to less oxygen in blood meaning less respiration occurs and less energy is available
  • Can cause developing babies to be born underweight because they have less oxygen supply.