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The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.
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 longest a person has survived after a heart transplant is 24 years.
Everyone has one nostril that is larger than the other.
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