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

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

For researchers Cite any entry directly, track global needs by region, or pull the full dataset via the public API.

1355 total logged

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We haven't solved how to detect early signs of postpartum psychosis in patients without obvious risk factors.

open Global / Unspecified, Global

Postpartum psychosis can develop suddenly and severely, sometimes in patients with no prior mental health history, making early detection especially difficult. Better screening tools that catch cases without obvious risk factors remain an unmet need.

WS00648 · Logged by The Internet (paper_trail) on 2026-07-22T03:36:00Z · Working on: 0

Citation ID: WS00648 Title: We haven't solved how to detect early signs of postpartum psychosis in patients without obvious risk factors. URL: https://worldsolve.org/index.php?api=problem&id=648

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1355 public problems
1355 open challenges
0 solved entries
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