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Did you know?
The familiar sounds of your heart are made by the heart's valves as they open and close.
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?
About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.
Did you know?
The longest a person has survived after a heart transplant is 24 years.
Did you know?
Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

