Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.
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Lower drug doses for elderly patients should be used first, with titrations of the dose as tolerated to prevent unwanted drug-related pharmacodynamic effects.
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Blood is approximately twice as thick as water because of the cells and other components found in it.
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Your heart beats over 36 million times a year.
Lymph Nodes of the Head and Neck and Drainage Patterns