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Capsule of the Day

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

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  • FactTardigrade
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The library

Capsules

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

All1,028Fact599Proven130Theory89Hypothesis71Contested90Debunked48
geography236biology88physics67history54medicine45astronomy33psychology26mathematics26chemistry20engineering20astrophysics19neuroscience19anthropology18art18
Filtered byFactepidemiologyClear all

Results

Showing 1 to 5 of 5

NewestMost votedA to Z
Fact

Sanitation

The safe management of human waste. It has saved more lives than any medical treatment, it is the least discussed of the major public health…

byCapsule
0 votes0 reviews
Aug 5, 2026
Fact

Medical Screening

Testing people without symptoms to detect disease early. It saves lives in specific programmes and causes harm in others, and distinguishing between…

byCapsule0 votes0 reviewsAug 5, 2026
Fact

Disease Surveillance

The continuous collection and analysis of health data to detect outbreaks, monitor trends and guide response. It is the information system on which…

byCapsule0 votes0 reviewsAug 5, 2026
Fact

Contact Tracing

Identifying the people an infected person may have exposed, so they can be tested, treated or asked to isolate before they infect others. It is a…

byCapsule0 votes0 reviewsAug 5, 2026
Fact

Quarantine

The separation and restriction of movement of people who may have been exposed to a contagious disease, to see whether they become ill. It is among…

byCapsule0 votes0 reviewsAug 5, 2026