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There are 20 feet of blood vessels in each square inch of human skin.
The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.
In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.
The familiar sounds of your heart are made by the heart's valves as they open and close.
The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.
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