The average adult has about 21 square feet of skin.
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Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.
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There are 20 feet of blood vessels in each square inch of human skin.
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Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.
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Illicit drug use costs the United States approximately $181 billion every year.
The Scale of Life 2
Human tongue
Landmarks in the evolution of life on Earth
The motor homunculus: the somatotopic map of the human primary motor cortex. Stimulation of sites in ...
Checkpoints and proliferation decision points monitor the progress of the cell through the cell cycl