What are the risk factors of CVD?

• Genetics:

  Genetic predisposition to hbp
• Age:

  Arteries become less elastic
• Diet high in saturated fats:

  Increase LDL levels
• Diet high in salt:

  Increase bp
• High blood pressure:

  Damage to the endothelium
• Smoking:

  Nicotine narrows arteries, makes platelets more sticky, more chance of blood clot
• Physical inactivity:

  Increases obesity risk
• Obesity:

  Increases bp
• Free radicals:

  Lower antioxidants

  Can damage endothelium lining

  Can damage DNA in cells

  Causing mutations + cancer
• Why do some people underestimate risk of CVD

  • Lack knowledge of family history
  • Lack education on developing CVD
• Why do some people overestimate risk of CVD?

  • Have family history of CVD
  • Media (can make risks seem more prevelant)
• 'Criticise this study' What parts do you focus on?

  • Sample size
  • Control of variables - increase validity
  • Data collection method - is it reliable? Open to bias?
  • Repetition - repeats by peers - increase reliability