Season 9 Episodes17
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Ranked #7 of 17 in Season 9•+0.3 vs season avg
The human immune system is the most complex biological system we know, after the human brain, and yet, most of us never learn how it works. Or what it is. Your immune System consists of hundreds of tiny and two large organs, it has its
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"How The Immune System ACTUALLY Works – IMMUNE" is episode 10 of Kurzgesagt - In a Nutshell season 9. It scored 8.3/10 from 22 votes, ranking #7 of 17 episodes this season (season average 8.0). It aired on August 10, 2021.