>>11585191from a purely biological perspective, stress is a response to an environmental variation, to which you must adjust.
failure to adapt properly to a variation can lead to chronic stress, as in a flowchart where you cannot find an exit, but it depens upon a multitude of factors.
the question regarding the reduction of stress is badly formulated, since not all stressors are bad, for example the first time you meet a new mate you are experiencing stress and it keeps you sharp and might increase your chances of a successful encounter.
the problem can arise from acute stressors, chronic stressors, inability or impossibility to extract a pattern to solve a problem, etc
ideally you would have no issues whatsoever if you were able to solve all the problems you faced but, since that is impossible, the so called stress management problem becomes complex