Sleep
How sleep duration and consistency interact with your nutrition, energy, and long-term health patterns.
The sleep-nutrition feedback loop: why bad nights and bad eating run together
Poor sleep and poor nutrition tend to appear together in tracking data — not by coincidence. Here is the two-way feedback loop and what it looks like when you track both dimensions at once.
What your magnesium levels tell you about sleep
Magnesium is the most consistently undertested micronutrient in personal health tracking. Most adults fall short of their daily target — and the pattern tends to appear alongside sleep quality dips in the data.
Sleep Duration Isn't the Whole Story. Here's What the Rest of Your Data Shows.
You slept 8 hours and still feel off. Or you slept 6 and feel sharp. Sleep duration is one signal — here's what the other signals in your health data are telling you.
The sleep-nutrition feedback loop most trackers miss
Short sleep and low protein intake tend to appear together in the data. Here is what the research says about why, and what it means for your daily patterns.
Sleep Duration vs. Sleep Quality: Why the Hours You Log Don't Tell the Whole Story
Eight hours in bed, alarm goes off, and you feel worse than you did at midnight. Sleep duration and sleep quality are two different things — here is what the research says about each.