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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 familiar sounds of your heart are made by the heart's valves as they open and close.

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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

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According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).

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Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

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