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Did you know?
Your heart beats over 36 million times a year.
Did you know?
In 1864, the first barbiturate (barbituric acid) was synthesized.
Did you know?
The familiar sounds of your heart are made by the heart's valves as they open and close.
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?
Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.