How are insights generated?

Two different things are at work.

Your daily forecast comes from a prediction model. It takes your recent sleep — how long, when, and how broken up the night was — along with the symptoms you've logged, and estimates how your clarity is likely to move across the day.

It's a pattern-based estimate, not a measurement. Some days it will be wrong.

AI Coach works differently. When you ask it something, your message and the relevant context from your recent data are sent to an external AI model, which generates the reply. That means part of your chat content is processed outside Joise's own systems.

There's more detail in Is my data private and secure?