Step 1 · before we start

Feel what you feel. Don't act.

The camera reads micro-movement, skin colour and pulse. If you brace, freeze your face, or perform calm for the lens, it measures the performance — not you — and the number will be wrong.

• Sit the way you were already sitting.
• Let your face do whatever it already does.
• Breathe normally — don't hold it.

Everything is analysed on this device. Nothing is recorded or uploaded, and the camera stops when the session ends.