Energy

Energy

1. fuels chemical reactions in body

   • keeps you alive
   • = metabolism
   • speed of reaction = metabolic rate
     • resting MR
       • muscle needs more energy than fat
         • the more muscle you have = higher the metabolic rate

2. the bigger you are - the more energy you need - the higher your MR

3. men have a higher MR than women

4. exercise boost MR because it builds muscle

5. activity levels affect how much energy you need

   • less activity = less energy required in diet