What the research says. What your own days add.
We read health research in full, one study at a time. Each post says what the study did, what it shows and leaves open, and what Lomba does about its main idea.
Alcohol and resting heart rate: what 20,968 wearables showed
A study of 20,968 people compared nights with more and fewer drinks than each person's usual. What it found, and what it cannot say about your nights.
- Glucose and ketones
Glucose ketone index (GKI): what it is and how it is measured
GKI is blood glucose divided by blood ketones. Where it came from, when two papers say to measure it, and why Lomba treats no value as a target.
4 min read - Wearables
How noisy is one morning's reading?
HRV and resting heart rate move from day to day. Four papers show how much, why a 7-day average moves less, and why your own usual range is the yardstick.
4 min read - Habits
Caffeine and sleep: what 24 studies found
A 2023 review of 24 controlled studies of caffeine and the night after. What it found on sleep and timing, and why its averages are not your own.
4 min read - Method
How long until a personal pattern is real?
A simulation study found about a fifth of one person's real links at 75 to 100 measurements, half at 500. What it means for you, and how Lomba waits.
4 min read - Method
Why most self-experiments end in "nothing found"
Three small studies of self-experiment apps show why short tests rarely give a clear answer, and why "nothing found" is not "no effect".
4 min read
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