The digital twin
This twin learned my nightly physiology from the months before Jakavi. From that, it projects the range my HRV would sit in without the drug: around 10 ms. After Jakavi started, my actual HRV broke out of that range and stayed out. The gap between the two lines is the effect a consumer ring made visible.
84 of 112 nights on Jakavi sit above the range the twin projected without it. Projected 10 ms. Actual 28 ms, a +175% gap.
Whole-period test: HRV +159% (p<0.001), all pre-ruxolitinib nights vs all post-ruxolitinib nights.
Last 30 nights vs the pre-treatment baseline. Every figure is a live query.
HRV (RMSSD)
9.0 → 26.5 ms
+193%
Parasympathetic, vagal, autonomic tone. Higher is better recovery.
Average sleeping HR
85 → 66 bpm
-22%
Lower resting heart rate means less cardiovascular strain.
Lowest nightly HR
77 → 57 bpm
-25%
The floor heart rate reaches overnight.
REM sleep
0.88 → 1.42 h
+61%
The sleep stage tied to memory and emotional recovery.