Definition of organism for English Language Learners. : 1  an individual living thing. : 2  a system with many parts that depend on each other and work together.
Figuring out how many calories you burn when running is, on a simple level, a fairly straightforward calculation. Most experts (and lots of studies) suggest that a person of average weight burns about 100 calories in a mile of running.
One pound equals 3,500 calories. A 150-pound person who walks one mile every day or 31 miles per month will burn 6,603 calories per month while walking 3 mph on a treadmillâs full incline. A 150-pound person jogging one mile 31 times will burn 3,627 calories while jogging 5 mph on a treadmillâs flat surface.