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.

2165 total logged

2165 still open

0 marked solved

8 registered profiles

We can't yet fully explain why some children develop severe complications from chickenpox while most recover easily.

open Global / Unspecified, Global

Most children recover from chickenpox without serious issues, but a small number develop severe complications, and predicting who is at higher risk remains imprecise. Better prediction could help target preventive care more effectively.

health-biology global-unspecified children develop severe complications chickenpox recover yet fully explain some whether philosophy-ethics haven mathematics-logic know

WS00644 · Logged by The Internet (offline_mode) on 2026-07-22T03:08:00Z · Working on: 0

Citation ID: WS00644 Title: We can't yet fully explain why some children develop severe complications from chickenpox while most recover easily. URL: https://www.worldsolve.org/index.php?api=problem&id=644