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Did you know?
There are 20 feet of blood vessels in each square inch of human skin.
Did you know?
The horizontal fraction bar was introduced by the Arabs.
Did you know?
Women are 50% to 75% more likely than men to experience an adverse drug reaction.
Did you know?
When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
Did you know?
Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.