Factors Affecting Health - B1

I hope you enjoy :) I am using a core science AQA book, but in my school i am currently studying OCR and it is the same information just different exam board providing the questions. I am doing mind-maps of all of B1, B2, B3, B4, P1, P2, P3, P4, C1, C2, C3, C4 so i hope you use them as resources. :) 

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  • Factors affecting health
    • People whose diet is badly out of balance are said to malnouished.
      • Malnouished people can be "Fat" or "Thin" or unhealthy in other ways..
        • Excess carbohydrate or fat in the diet can lead to obesity.
        • Obesity is a common disorder in develped countries.
        • Hormonal problems can lead to obesity, though the usual cause is a bad diet, overeating and lack of exercise.
        • Health problems that can arise as a result of obesity includes arthiritis, type 2 diabetes, high blood pressure and heart disease.
        • Also other health problems like eating too much saturated fat in your diet can increase your blood cholesterol level, and eating too much salt can cause heart problems and high blood pressure.
        • Some people in developed countries suffer from lack of food.
        • The effects of malnutriton vary depending on what foods are missing from the diet. Bur problems commonly include slow growth, fatigue and irregular periods.
        • Deficiecy diseases are caused by lack of vitamins or minerals For example a lack of vitamins can cause scurvy, and problems with skin, joints and gums.
    • not getting enough exercise can cause people to become unhealthy.
      • Exercise increases the amount of energy used by the body and decreases the amount stored as fat.
      • However people can  be fit, but not healthy. They can be physically a healthy weight, but not a healthy diet.
    • Inherited factors can determine how fit and healthy you are as a person.
      • Its not just what you eat and how much exercise you do, you can also inherited factors too.
      • Some people may inherit factors that affect their metabolic rate, eg. people inherit under-active thyroid gland which can cause obesity.
      • Other people may inherit factors that can affect their blood cholesterol level. Cholesterol is a fatty substance that is essential for good health and is found in every cell in the body.
      • Some people inherit factors which increase blood cholesterol level, which increase the risk of heart disease.


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