It seems as though this comments section is filled with self-proclaimed "night owls." I'm curious, have any of you read the linked articles about variables that influence people to remain awake later than they should and have these types of erratic sleep patterns / modified circadian rhythms (heavy computer use / blue light exposure)? And, have any of you tested your own reaction to curtailing these late-night activities while introducing natural sunlight stimulant in the morning?

I'm not asking in a derogatory way; I'm genuinely curious since I experimented with this myself and found positive results. My guess is that most haven't, and that it's easier just to accept a "night owl" classification in lieu of hundreds of thousands of years of human dependence on the sun and fire for light. Based on my limited research it seems that those without significant mental illness sleep well with habit and controlled stimuli (including natural light). Has anyone, through any amount of reasonable testing, found this NOT to be true?