B1.1.1 Diet and Exercise

B1.1.1 Diet and Exercise

1. Healthy Diet

   • Balance of different foods
   • Right amount of energy
   • CARBOHYDRATES, FATS, PROTEINS
     • release energy
     • build cells
   • MINERAL IONS, VITAMINS
     • small amounts
     • healthy functioning of the body

2. Malnourishment

   • WHEN DIET IS NOT BALANCED
     • overweight
     • underweight
     • deficiency diseases
     • conditions e.g. Type 2 diabetes

3. Lose mass

   • energy content of food taken in less than energy expended by body
     • exercise increases amount of energy expended

4. Metabolic rate

   • rate at which chemical reactions take place in body
   • VARIES WITH...
     • amount of activity you do
     • proportion of muscle to fat in body
   • Also affected by inherited factors
     • Inherited factors also affect health, e.g. cholesterol level

5. people who exercise more are usually healthier