There are more bacteria in your mouth than there are people in the world.
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Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.
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The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.
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Excessive alcohol use costs the country approximately $235 billion every year.
Some organisms used as models in genetic research
Selected Miscellaneous Antibacterials
Selected Central Nervous System Neurotransmitters and Their Functions