Bacteria, and the human body.
There are 100,000 billion microbes in the human intestine, but there are only 37,200 billion cells in the human body:
- There is about 3 lbs of bacteria in your gut.
- 80% of the immune system is in the GI tract.
- At death, these microbes will outlive us, and then break us down (unless we are cremated of course).
From age 2 to 50, our bacteria profile stays about the same.
Food will be in the stomach for about 2 hours.
90 minutes is the transit time of the small intestine:
- Every 48 hours, the small intestine’s mucosal epithelium is replaced.
- The surface area of the small intestine is the size of a tennis court.
- 20-22 feet is the length of the small intestine.
- And glutamine is the main energy source of the small intestine.
20 hours is the transit time of the colon:
- Every 12 days the colon’s mucosal epithelium is replaced.
- The colon is 4 feet in length.
- Butyrate is the energy source of the colon (it is the fermentation of soluble fiber in the colon).
Our skin is covered with bacteria, just as our insides:
- The skin is mostly colonized with staphylococci.
- These microbes are considered foreign to the body, however, the body and bugs have an immune tolerance to each other.
- This immune tolerance means that they don't fight each other, or try to kill each other off.
- But, when this immune tolerance is changed, or lost, we can be at a higher risk of having allergies, or autoimmune diseases.