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Did you know?
There are 60,000 miles of blood vessels in every adult human.
Did you know?
In 1844, Charles Goodyear obtained the first patent for a rubber condom.
Did you know?
Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
Did you know?
Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
Did you know?
In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.