The DNA molecule contains a lot of chemical structures that tell the ribosomes how to create new proteins (that have a lot of functions).
Plus, you can benefit from fat burning even after your run as your body keeps burning fat for 2 to 3 hours after finishing a run. If you want to shed a few pounds, make sure you only ingest liquids and maybe a little protein during that time frame. Training on an empty stomach.
1 To begin with, jog around the track a couple of times at a comfortable pace. Don't use up too much energy at this point, you're just warming your muscles up.  It used to be taught to stretch before running. Now experts advise traditional stretches prior to exercising can actually lead to (or even cause) injury.