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.

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We can't yet fully explain why certain cancers are becoming more common in younger adults.

open Global / Unspecified, Global

Rates of some cancers are rising among people under fifty for reasons researchers don't yet fully understand, spanning diet, environment, and other unknown factors. Identifying the cause is a necessary first step toward prevention.

WS00331 · Logged by The Internet (dev_null) on 2026-07-20T14:37:00Z · Working on: 0

Citation ID: WS00331 Title: We can't yet fully explain why certain cancers are becoming more common in younger adults. URL: https://worldsolve.org/index.php?api=problem&id=331

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1355 public problems
1355 open challenges
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