Age in Reflexes

My eyes went in reflex, Somebody was zapping, And a fly was flapping too, Somebody again zoomed his hand as if to hit, My eyes turned and closed on the scene gist, In each situation reflex had worked, Suddenly I thought, My reflexes work best whenever my self interest is hurt, Or is about to be hurt, Otherwise I let go and do not care dirt, Is our self interest woven with reflexes? While self interest is defined and sort of software, Iteratively augmenting and updating in brain, Reflexes are about given hardware, And there must be a point, When reflexes cannot gel with self interest, Now broadly defined, And turn vapid and cold, Is it the point when we say we have turned old?