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Immune: A Journey into the Mysterious System That Keeps You Alive

Pdf Book Name: Immune A Journey into the Mysterious System That Keeps You Alive
Author: Philipp Dettmer
Publisher: Random House Digital
ISBN-10, 13: 0593241312,978-0593241318
Year: 2021
Pages: 368 pages
Language: English
File size: 27 MB
File format: PDF,EPUB

Immune: A Journey into the Mysterious System That Keeps You Alive Pdf Book Description:

IMAGINE WAKING UP TOMORROW, FEELING a bit under the weather. An annoying pain in your throat, your nose is runny, you cough a bit. All in all, not bad enough to skip work, you think, as you step into the shower, pretty annoyed about how hard your life is. While you are totally not being a whiny little baby, your immune system is not complaining. It is busy keeping you alive so you can live to whine another day. And so, while intruders roam your body, killing hundreds of thousands of your cells, your immune system is organizing complex defenses, communicating over vast distances, activating intricate defense networks, and dishing out a swift death to millions, if not billions, of enemies. All while you are standing in the shower, mildly annoyed. But this complexity is largely hidden. Which is a real shame because there are not many things that have such a crucial impact on the quality of your life as your immune system. It is all embracing and all-encompassing, protecting you from bothersome nuisances like the common cold, scratches, and cuts, to life-threatening stuff from cancer and pneumonia to deadly infections like COVID-19. Your immune system is as indispensable as your heart or your lungs.

And actually, it is one of the largest and most widespread organ systems throughout your body, although we don’t tend to think about it in these terms. For most of us, the immune system is a vague and cloud-like entity that follows strange and untransparent rules, and which seems to sometimes work and sometimes not. It is a bit like the weather, extremely hard to predict and subject to endless speculations and opinions, resulting in actions that feel random to us. Unfortunately many people speak about the immune system with confidence but without actually understanding it, it can be hard to know which information to trust and why. But what even is the immune system and how does it actually work? THE STORY OF THE IMMUNE system begins with the story of life itself, almost 3.5 billion years ago, in some strange puddle on a hostile and vastly empty planet. We don’t know what these first living beings did, or what their deal was, but we know they very soon started to be mean to each other. If you think life is hard because you need to get up early in the morning to get your kids ready for the day, or because your burger is only lukewarm, the first living cells on earth would like a word with you. As they figured out how to transform the chemistry around them into stuff they could use while also acquiring the energy needed to keep going, some of the first cells took a shortcut. Why bother with doing all the work yourself if you could just steal from someone else? Now, there were a number of different ways to do that, like swallowing someone else whole, or ripping holes into them and slurping out their insides. But this could be dangerous, and instead of getting a free meal, you could end up as the meal of your intended victim, especially if they were bigger and stronger than you.

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