Health & disease

• types of diseases


  communicable or non-communicable
• communicable 


  contagious diseases
• non-communicable


  cant spread e.g cancer, asthma
• health


  the state of physical and mental well-being
• factors that affect your health

  • diet
  • exercise
  • stress
• risk factors of disease

  • smoking
  • obesity
  • alcohol
  • exposure to radiation or certain substances
• cancer is caused by the uncontrolled cell growth and division
• benign


  when the tumour stays in one place rather than invading other tissues in the body - isn't harmful of cancerous
• malignant


  tumour grows and spreads into other tissue - are dangerous and cancerous
• risk factors of cancer

  • smoking
  • obesity
  • UV exposure
  • viral infection
  • genetics