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As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.
Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.
Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).
If you could remove all of your skin, it would weigh up to 5 pounds.