Explain Why You Ruminate More at 3am Than at 3pm

The thing that felt manageable at 6pm is suddenly unbearable at 3am, and by lunchtime the next day it barely registers again. This explains the actual biology behind why night thinking distorts everything, and gives you one rule for how much to trust a thought that only shows up in the dark.

Explain, in plain but precise language, why the same worry or problem feels far more catastrophic at 3am than it does at 3pm, covering the role of circadian dips in mood regulation, reduced access to rational reframing during night-time cortisol and body temperature changes, and the absence of the daytime distractions that normally keep rumination in check. Then give one practical rule for how much weight to give a 3am thought before checking it again in daylight.