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According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.
There are more sensory neurons in the tongue than in any other part of the body.
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).
By definition, when a medication is administered intravenously, its bioavailability is 100%.
Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.