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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?
In 1844, Charles Goodyear obtained the first patent for a rubber condom.
Did you know?
The longest a person has survived after a heart transplant is 24 years.
Did you know?
Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.
Did you know?
On average, the stomach produces 2 L of hydrochloric acid per day.