Health KS3 Y8

Health KS3 Y8

1. Types of foods

   • Fats
     • Source of energy
       • Stored beneath the skin
   • Water
     • Needed to maintain the fluid
       • Lost during sweat
   • Vitamins
     • Needed in small quantities
       • Vitamin A for eyes
       • Vitamin C for healthy immune system
     • Needed in small quantities
       • Iron needed for haemoglobin
         • Makes blood red
   • Protein
     • Provides a source of materials for growth and repair
       • Turned into amino acids
         • Cannot get into blood
         • Molecule too big
   • Fibre
     • Helps you fill up
   • Carbs
     • Important source of energy
     • Obtained in form of starch
       • Digestive system breaks into glucose for respiration
   • Mineral Salts

2. Diseases

   • Scurvy
     • Lack of vitamin C
   • Rickets
     • Lack of vitamin D
   • Night blindness
     • Vitamin A
     • Osteoporosis
       • Lack of calcium
   • Kwashiorkor
     • Lack of protein

3. Malnutrition

   • Low mood
   • Weight loss
   • Low energy
   • Muscle wasting
   • Increases risk of fractures and hospital admissions
   • Increased risk of fall
   • Reduced independence and moblity
   • Infection and confusion

4. BMI

   • See if you're overweight or underweight
   • Body Mass Indicator
   • Weight/ height/ height

5. Obesity

   • Overweight and have excessive fat
   • BMI over 25 is overweight
     • BMI over 30 is obese
     • Consequences
       • Heart disease
       • Stroke
       • High bloodpressure
       • Diabetes and cancer
       • Osteoarthritis
   • Energy imbalance
     • Calories used and burned is uneven

6. Fitness

   • Ability to meet demands of the environment
     • Physically being able to cope with the demands of everyday life
       • Suppleness
       • Strength
       • Stamina
   • Depends on person

7. Heart rate

   • Affects blood pressure
     • Fitter person has lower resting heart rate

8. Calories

   • 1940 a day average
   • Makes you unfit