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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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The library

Capsules

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

All1,028Fact599Proven130Theory89Hypothesis71Contested90Debunked48
geography236biology88physics67history54medicine45astronomy33psychology26mathematics26chemistry20engineering20astrophysics19neuroscience19anthropology18art18
Filtered byFactimmunologyClear all

Results

Showing 1 to 5 of 5

NewestMost votedA to Z
Fact

Allergy

An immune response to a harmless substance. The machinery involved evolved to deal with parasites, the response causes the disease rather than the…

byCapsule
0 votes0 reviews
Aug 5, 2026
Fact

Inflammation

The body's response to injury or infection, producing redness, heat, swelling and pain. It is protective and necessary, and when it persists without…

byCapsule0 votes0 reviewsAug 5, 2026
Fact

Antibodies

Proteins produced by the immune system that bind specifically to a target and mark it for removal. Their variety is generated at random before any…

byCapsule0 votes0 reviewsAug 5, 2026
Fact

Monoclonal Antibodies

Identical antibodies produced by a single clone of cells, all binding the same target at the same site. They turned the immune system's specificity…

byCapsule0 votes0 reviewsAug 5, 2026
Fact

The Immune System

The set of cells, tissues and molecules that defends the body against infection. It operates in two connected layers: a fast general response, and a…

byCapsule0 votes0 reviewsAug 5, 2026