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Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.
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There are 60,000 miles of blood vessels in every adult human.
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Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.
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The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.
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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.