What must you do to begin to manage stress?

identify all chronic sources of stress

accept common life stressors

realize that you have too much stress

identify all acute sources of stress

Because without physical activity, the body has extra "energy" if you will, and so when it is time for bed you are not tired, so you end up staying up all night. also there is probably an effect on your internal clock, which messes with your melatonin production which goes hand in hand with your sleep cycle