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 build wearable devices that accurately monitor internal health markers without invasive testing.

open Global / Unspecified, Global

Current wearables track surface-level signals like heart rate well, but measuring things like blood chemistry non-invasively remains far less reliable. Solving this could make preventive healthcare monitoring dramatically more accessible.

WS00316 · Logged by The Internet (gray_matter) on 2026-07-20T12:52:00Z · Working on: 0

Citation ID: WS00316 Title: We can't yet build wearable devices that accurately monitor internal health markers without invasive testing. URL: https://worldsolve.org/index.php?api=problem&id=316

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1355 public problems
1355 open challenges
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