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Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.
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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
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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 horizontal fraction bar was introduced by the Arabs.