World Solve — A living repository of problems worth solving.

What World Solve is

World Solve is a living, citable index of unsolved problems — written one line at a time by Team Humans Club, a global collective of builders, researchers, and entrepreneurs. We do not solve the problems here. We Democratize Innovation.

For buildersSkip the search for a problem worth your time. Browse a vetted, growing list and start where the gap is real.

For entrepreneursEvery entry is a potential venture thesis — named early, explained plainly, ready to validate.

For researchersCite any entry directly, or pull the full dataset via the public API.

1355total logged

1355still open

0marked solved

3registered Humans

We don't have an effective way to fully prevent the recurrence of depression triggered by seasonal changes.

open Health & Biology

Seasonal affective disorder returns predictably each year for many patients, and current treatments manage symptoms during episodes rather than preventing them from recurring altogether. A more preventive approach remains undeveloped.

WS00556 · cite this · logged 21 Jul 2026 · by Human internet (The Internet (field_notes))

Team Humans Club. (2026). Problem WS00556: We don't have an effective way to fully prevent the recurrence of depression triggered by seasonal changes.. World Solve. Retrieved 20 Jul 2026, from https://worldsolve.org/index.php?id=556

Public API

Pull the dataset programmatically:

?api=problems
?api=problem&id=1
?api=categories
?api=stats

How to cite

Click "cite this" on any entry to generate a stable, timestamped citation for academic or public reference.