The blog
Notes from the build.
Plain-English writing about the things SoluneFit is built around: how a day holds together, what actually makes sleep restorative, how to train without burning out, and how to pick a device that earns its place on your wrist.
No hype, no magic numbers, and no pretending the evidence is tidier than it is. Where something is uncertain, it says so.
Daily routines & general health
The unglamorous structure underneath everything else.
Build a day that holds
Most routines fail because they are built on motivation, which is weather. Here is how to build one on anchors instead — and how to make it survive a bad week without collapsing entirely.
- Morning light: the cheapest lever you have
- What to do with a day that has already gone wrong
- Caffeine timing, honestly assessed
Optimum sleep & rest
What good sleep really depends on — and what your tracker can and cannot see.
Sleep that actually restores
Regularity, light, timing and sleep pressure do most of the work. Chasing a deep-sleep number on a wrist device usually does the opposite. A practical look at the levers that matter.
- Why waking at 3am is usually normal
- Naps: when they help and when they cost you
- What a sleep stage graph is actually showing you
General fitness
Training you can still be doing in five years.
Fitness without the all-or-nothing
An easy aerobic base, some strength, progression you can feel, and recovery treated as part of the plan rather than a reward for finishing it. The boring version works.
- Reading your resting heart rate without panicking
- Strength training when you have twenty minutes
- Deload weeks for people who are not athletes
Best devices to reach your goals
How to choose — not which one to buy. No rankings, no brands.
How to choose a tracking device
Which sensors actually matter, what battery life means for overnight wear, why comfort decides whether you keep using it, and the two questions almost nobody asks: can you get your data out, and where does it go first?
Optical heart rate: where it struggles and why
How a light on your wrist counts heartbeats, and what the published studies say about where it goes wrong: movement above all, then fit, tattoos and the still-open question of skin tone.
Checking a device against itself for a week
A simple one-week test for any tracker: write down what you know, compare it with what the device says, and look at where and how they disagree. Borrowed from how validation studies are done.
What to look for in an export file
Being able to export is the start, not the finish. Ten minutes with a text editor will show whether a file is complete, whether its timestamps make sense, and whether the gaps are honest.
In development
More is on the way.
New pieces are written as the work turns them up.