Lifestyle and Disease

Overview of Non-Communicable Diseases

  • Non-communicable diseases (NCDs) cannot be passed from person to person and are not caused by pathogens.

  • Examples include:

    • Cardiovascular diseases

    • Type 2 diabetes

    • Most types of cancer

  • NCDs are the leading cause of death in the UK, surpassing infectious diseases.

Cardiovascular Diseases

  • Account for over 25% of all deaths in the UK.

  • Major risk factors include:

    • Diet:

      • High in fat and low in vegetables → increased cholesterol levels → increased rate of Fatty materials build-up in arteries.

      • High salt intake → Increases blood pressure, raising the risk of cardiovascular diseases.

    • Smoking:

      • Significantly raises the risk of cardiovascular diseases and lung cancer.

      • Contains carcinogens that trigger cancer.

      • Increases risk of other lung diseases, such as emphysema.

      • Smoking during pregnancy increases risks of miscarriage, premature birth, and low body mass in newborns.

    • Exercise:

      • Regular exercise decreases the risk of developing cardiovascular diseases.

Alcohol Consumption

  • Risks associated with alcohol include:

    • Pregnant Women:

      • Recommended to avoid smoking and drinking alcohol to prevent harm to the unborn baby.

      • Alcohol can cause fetal alcohol syndrome, leading to various developmental challenges in children.

    • Adults:

      • Excessive drinking increases risk of liver cirrhosis and liver cancer.

      • Can lead to addiction and memory loss impacting brain health.

Type 2 Diabetes

  • Increasingly prevalent in the UK.

  • Difficulty controlling blood glucose levels can lead to serious consequences, such as blindness or limb amputation.

  • Major risk factor:

    • Obesity:

      • Higher risk of developing type 2 diabetes.

      • Risk factors can interact (e.g., excessive alcohol consumption can lead to obesity, which increases diabetes risk).

Environmental Risk Factors

  • Some risk factors are unrelated to lifestyle, such as:

    • Radon:

      • A radioactive gas that can increase lung cancer risk, found in certain UK regions.

Summary

  • Understanding the relationship between lifestyle choices and risk factors for non-communicable diseases is crucial.

  • Lifestyle modifications can lower the risk of serious conditions and improve overall health.