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Did you know?
The human body produces and destroys 15 million blood cells every second.
Did you know?
The longest a person has survived after a heart transplant is 24 years.
Did you know?
There are approximately 3 million unintended pregnancies in the United States each year.
Did you know?
Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.
Did you know?
Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.