People are downplaying the extent to which habits and preferences have an impact. Staying in bed late will shift forward your circadian rhythm. Blue-light emitting electronics will suppress melatonin at night and raise cortisol.
Before the industrial revolution few were staying up all night regularly unless they were on night shift. Bright light and multimedia available at night changed.
People are downplaying the extent to which habits and preferences have an impact. Staying in bed late will shift forward your circadian rhythm. Blue-light emitting electronics will suppress melatonin at night and raise cortisol.
Before the industrial revolution few were staying up all night regularly unless they were on night shift. Bright light and multimedia available at night changed.