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After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
Blood is approximately twice as thick as water because of the cells and other components found in it.
Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
The human body produces and destroys 15 million blood cells every second.
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