There are more bacteria in your mouth than there are people in the world.
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In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).
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Excessive alcohol use costs the country approximately $235 billion every year.
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The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.
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More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.
Divorce Rates, Selected Countries In many countries divorce rates have risen in recent decades.
Recent history of biochemistry shown by the introduction of new techniques. (part 2)
Young recent immigrants often develop two identities