How to use it
Not sad, not burned out, just flat: call it languishing. Then one small finishable goal and one stretch of uninterrupted focus. If it's been weeks, or it's more than flat, talk to someone.
How sure we are
S Evidence: strong. Large trials or many studies, pointing the same way.
Sources
Languishing as a distinct state between depression and flourishing (Keyes 2002) · affect labelling.
Not medical, legal or financial advice.