We do not survive as single individuals, but as collaborative communities.
Chapter 1

The garbage trucks in your cells

Chapter 2

The biology of extreme survival

Chapter 3

The micro-farm inside your gut

Chapter 4

Humans as planetary lifeboats

YOUR GOAL

Master of How your body recycles itself

Ch 3 · The micro-farm inside your gut
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007skaty Chemical communication along the human gut-brain axis

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007skaty The Gut Microbiome

My gut is making all my feel-good chemistry (oh-oh!) / A trillion microbes keeping up the energy (yeah yeah!)

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We do not survive as single individuals, but as collaborative communities.

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007skaty Short-chain fatty acids serve as vital energy sources for human cells

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The gut-brain axis and chemical control

007skaty Microbes in the digestive tract manipulate our appetite through chemical signals, steering us to eat the foods that

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Short-chain fatty acids as cellular fuel

007skaty Labeled glass and chrome models of fatty acids entering isometric colon cells.

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Tiny Tummy Garden
BETA

007skaty Grow helpful microbes in the gut garden to learn how bacteria sustain the human body.

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Fun Fact

Microbial cell count: Your body contains roughly 30 trillion human cells, but it plays host to nearly 38 trillion bacterial cells living inside you.

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Glossary
microbiome (noun)
The community of microorganisms that live in a particular environment, especially in or on the human body. The human digestive tract hosts about 100 trillion microbial cells that synthesize vitamins and regulate metabolic health.

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Gossip

Would you ever try a fecal transplant if sick?

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Quiz

What is the approximate ratio of bacterial cells to human cells in a typical adult body?

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007skaty Gut bacteria produce essential vitamins inside the human body

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Quiz

Which bacterial genus is a major producer of B-vitamins in the human digestive tract?

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007skaty Doctors transplant healthy microbes to rebuild damaged gut ecosystems.

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Quiz

Approximately what percentage of the body's serotonin is produced in the gut?

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Quiz

What is the cure rate of Fecal Microbiota Transplantation (FMT) for recurrent C. difficile infections?

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Quiz

Which major physical pathway connects the gut's nervous system directly to the brain?

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Quiz

Which essential blood-clotting vitamin is heavily produced by bacteria in the human gut?

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Quiz

In what year was the first modern medical case of fecal transplantation recorded?

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Quiz

What is the primary short-chain fatty acid that provides 70% of the energy for colon cells?

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