Calm & recovery
You can spend twenty minutes sitting still and come out of it no more recovered than you went in. Whether calm actually happened is a physiological question, and it is one you can be measurably wrong about.
What you can see
Meditation apps have never been able to tell you whether anything happened — only that you sat there for the right length of time. Alpha and frontal rhythms shift measurably as someone settles, and so do heart-rate variability and skin conductance. Afterwards you can see which of your sessions actually landed.
Jaw clenching is one of the most honest stress signals there is, and almost nobody knows they are doing it. Clench-minutes per day is a concrete number, it moves fast when things change, and people believe it immediately because they recognise it the moment they see it.
Breathwork, body scan, walking, music, doing nothing at all. The evidence for “which method is best” is thin in general and irrelevant in particular. What matters is which one works for you, and that is testable in a fortnight.
The recovery nobody tracks
Sleep gets all the attention because it is easy to think about as a block. But most of the recovery available in a day happens in the gaps — and most people spend those gaps in a state that is not restful at all.
Where we stop
Ninug measures states associated with stress and calm. It does not diagnose anxiety, depression or any other condition, and it does not treat them.
If stress is affecting your life, the useful next step is a person, not a wearable. What we can offer is a record to bring to them, and honest feedback about what genuinely helps you on an ordinary day.
We also do not run neurofeedback training sessions at launch. The clinical evidence for consumer neurofeedback is more mixed than the marketing in this category suggests, and we would rather ship the measurement first.
If you teach this for a living and have always wanted to know whether it is landing, we would like to talk.