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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
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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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Medication errors are more common among seriously ill patients than with those with minor conditions.
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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.
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