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Did you know?
There are 60,000 miles of blood vessels in every adult human.
Did you know?
There are 20 feet of blood vessels in each square inch of human skin.
Did you know?
The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.
Did you know?
Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
Did you know?
Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.