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Did you know?
In 1844, Charles Goodyear obtained the first patent for a rubber condom.
Did you know?
Cyanide works by making the human body unable to use oxygen.
Did you know?
The familiar sounds of your heart are made by the heart's valves as they open and close.
Did you know?
There are actually 60 minerals, 16 vitamins, 12 essential amino acids, and three essential fatty acids that your body needs every day.
Did you know?
About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.