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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.
Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
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).
Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.