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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?
Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.
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 more nerve cells in one human brain than there are stars in the Milky Way.
Did you know?
Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.