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Did you know?
The familiar sounds of your heart are made by the heart's valves as they open and close.
Did you know?
Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.
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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
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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.
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More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.