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Did you know?
Blood is approximately twice as thick as water because of the cells and other components found in it.
Did you know?
Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.
Did you know?
The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.
Did you know?
There are 60,000 miles of blood vessels in every adult human.
Did you know?
The human body produces and destroys 15 million blood cells every second.