How does the overload principle apply to a successful fitness program?
a.
the overload principle individuals determine when their muscles have reached failure while exercising.
b.
the overload principle allows people to chart their progress during a fitness program.
c.
the overload principle individuals achieve consistent gains in their fitness program.
d.
the overload principle instructs an individual to target certain body parts while exercising for optimal results.

Life expectancy in the united states is (76.4 for men and 81.1 for women). life expectancy is not the same as healthy life expectancy. healthy life expectancy is the number of years a person is expected to live in this number is obtained by subtracting years spent in poor health from overall life expectancy. the world health organization (who) calculates healthy life expectancy in 194 countries. the united states ranks twenty-ninth in the world using this measurement, with an average of of healthy life expectancy. singapore ranks number one (76 years), and japan is number two (75 years).