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Did you know?
The human body produces and destroys 15 million blood cells every second.
Did you know?
On average, the stomach produces 2 L of hydrochloric acid per day.
Did you know?
The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
Did you know?
The familiar sounds of your heart are made by the heart's valves as they open and close.
Did you know?
Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.