non-communicable diseases - obesity

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  • Obesity
    • Problems
      • heart disease
      • arthritis
      • high blood pressure
      • type 2 diabetes
        • body (pancreas) doesn't make enough insulin or cells stop responding to insulin
          • too much sugar (glucose)in the bloodstream
          • obesity puts extra pressure on the body to produce insulin due to excess glucose being consumed
        • prevention/ treatment
          • balanced diet
          • losing weight
          • exercising regularly
    • exercise
      • amount of exercise affects amount of food needed for respiration
      • regular exercise = more muscle tissue, increasing metabolic rate, less likely to be overweight
        • reduces risk of arthritis, blood pressure, high blood pressure
      • fitter heart and bigger lungs
      • lowers blood cholesterol levels, helps to balance different types of cholesterol
        • reduces risk of fatty deposits building up on coronary arteries, reduces risk of heart disease
  • ionising radiation
    • ultraviolet light from sun
      • increases risk of skin cancers like melanoma
    • radioactive material found in soil, water and air
      • radon gas in granite rich areas
    • medical and dental x-rays
      • radiation penetrates the cells and damages the chromosomes causing mutations in the DNA
    • accidents in nuclear power generation
      • can spread ionising radiation over wide areas

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