Why stress, sleep, and routine actually move your glucose
Stress hormones raise glucose on their own
Adrenaline and cortisol, the hormones your body releases under stress, signal your liver to release stored glucose, independent of anything you ate or any insulin you took. A stressful day can push glucose up even when your carbs and dose were identical to a calm day.
Poor sleep changes how well insulin works the next day
Sleep loss is linked to reduced insulin sensitivity, so the same dose that worked yesterday may not cover the same meal today, purely because of how you slept, not because your ratio is wrong.
Irregular routines make patterns harder to see
When meal timing, activity, and sleep shift around day to day, glucose swings look random. Logging them next to your glucose is what turns “random” into a pattern you can actually name.
Why a real correlation, not just a feeling
It’s easy to blame a bad number on the wrong thing. Changing a carb ratio because of a high that was actually caused by a stressful day risks making the ratio wrong on every calm day afterward. This tool waits until you’ve logged enough days, then runs an actual statistical correlation, so the pattern it shows is backed by your own numbers, not a guess.