Health KS3 Y8

Health KS3 Y8

Types of foods
1. Fats
  1. Source of energy
    1. Stored beneath the skin
2. Water
  1. Needed to maintain the fluid
    1. Lost during sweat
3. Vitamins
  1. Needed in small quantities
    1. Vitamin A for eyes
    2. Vitamin C for healthy immune system
  2. Needed in small quantities
    1. Iron needed for haemoglobin
      1. Makes blood red
4. Protein
  1. Provides a source of materials for growth and repair
    1. Turned into amino acids
      1. Cannot get into blood
      2. Molecule too big
5. Fibre
  1. Helps you fill up
6. Carbs
  1. Important source of energy
  2. Obtained in form of starch
    1. Digestive system breaks into glucose for respiration
7. Mineral Salts
Diseases
1. Scurvy
  1. Lack of vitamin C
2. Rickets
  1. Lack of vitamin D
3. Night blindness
  1. Vitamin A
  2. Osteoporosis
    1. Lack of calcium
4. Kwashiorkor
  1. Lack of protein
Malnutrition
1. Low mood
2. Weight loss
3. Low energy
4. Muscle wasting
5. Increases risk of fractures and hospital admissions
6. Increased risk of fall
7. Reduced independence and moblity
8. Infection and confusion
BMI
1. See if you're overweight or underweight
2. Body Mass Indicator
3. Weight/ height/ height
Obesity
1. Overweight and have excessive fat
2. BMI over 25 is overweight
  1. BMI over 30 is obese
  2. Consequences
    1. Heart disease
    2. Stroke
    3. High bloodpressure
    4. Diabetes and cancer
    5. Osteoarthritis
3. Energy imbalance
  1. Calories used and burned is uneven
Fitness
1. Ability to meet demands of the environment
  1. Physically being able to cope with the demands of everyday life
    1. Suppleness
    2. Strength
    3. Stamina
2. Depends on person
Heart rate
1. Affects blood pressure
  1. Fitter person has lower resting heart rate
Calories
1. 1940 a day average
2. Makes you unfit

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