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You Are Immune Against Every Disease

Kurzgesagt – In a Nutshell · 20M views · 2021-11-02 · 11:46

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Overview

Kurzgesagt's animated explainer on the human immune system, describing the body as an ecosystem and how immune defenses cope with the variety of invaders. It promotes their book Immune.

On Hacker News

HN users call it a mind-blowing and good explainer on how the immune system works, and cite it in vaccine and disease threads.

Recommended by 2 HN people across 2 months · HN mentions 2021–2024

Topics

Biology & biotechnologyMedicine & infectious disease
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immunologykurzgesagtbiologyanimationhealth

What people said

hallway_monitor · 2022-01 · Strong recommendation

I don't see many YouTube links posted here, but this Kurzgeasgt video blew my mind on this topic. Our immune system really is amazing. [VIDEO]

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Wowfunhappy · 2021-12 · Recommendation

Vaccines are different from antibiotics in that they are designed to use your own immune system. Whereas an antibiotic targets a bacterial weakness which the bacteria can fix, the immune system watches for both specific invaders and possible variations of those invaders . Kurzgesagt made a good explainer video on this recently: [VIDEO]

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chasil · 2024-04 · Reference

Does this relate to the shutdown of the thymus (the "murder university")? The thymus goes dormant at the age of 85,as I've read. The lymphoid strain can specialize into t-cells, which is the speciality of the thymus. [VIDEO] The myeloid does provide macrophages, but they are of little value compared to an activated b-cell on a mission.

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Sources

Video by Kurzgesagt – In a Nutshell, played through YouTube.

Data and selection notes

HN summaries and labels may contain AI errors. HN dates refer to discussions, not video publication.

HN Library: HackerTube export (2026-10-31) and open-index/hacker-news. Upstream summaries and classifications may contain AI errors.

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