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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
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Medication errors are three times higher among children and infants than with adults.
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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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Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.