There are more nerve cells in one human brain than there are stars in the Milky Way.
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The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.
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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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Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.
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According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.
Reindeer antlers grow again each year under a layer of fur called velvet. This reindeer is losing th
A Splash of Color in a Frozen World of White
A very high-resolution texture of the Moon, including a normal map
Both men and women gain weight in young adulthood and middle adulthood, losing in the late 50s, but
NADH acts as a reducing agent in several reactions