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DebunkedThe PolygraphThe instrument popularly called a lie detector, which records breathing, blood pressure, pulse and skin conductance dur…

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The library

Capsules

1,028 capsules, each one classified by the strength of its evidence.

All1,028Fact599Proven130Theory89Hypothesis71Contested90Debunked48
geography236biology88physics67history54medicine45astronomy33psychology26mathematics26chemistry20engineering20astrophysics19neuroscience19anthropology18art18
Filtered bymedicinediabetesClear all

Results

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Fact

Insulin

The hormone that allows cells to take up glucose from the blood. Its discovery in 1921 turned type 1 diabetes from a fatal disease into a manageable…

byCapsule
0 votes0 reviews
Aug 5, 2026