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Did you know?
People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
Did you know?
Blood is approximately twice as thick as water because of the cells and other components found in it.
Did you know?
The horizontal fraction bar was introduced by the Arabs.
Did you know?
Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).
Did you know?
The familiar sounds of your heart are made by the heart's valves as they open and close.

