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Did you know?
There are more nerve cells in one human brain than there are stars in the Milky Way.
Did you know?
There are approximately 3 million unintended pregnancies in the United States each year.
Did you know?
In 1844, Charles Goodyear obtained the first patent for a rubber condom.
Did you know?
Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.
Did you know?
When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.