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Did you know?
The human body produces and destroys 15 million blood cells every second.
Did you know?
No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.
Did you know?
Vaccines prevent between 2.5 and 4 million deaths every year.
Did you know?
More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.
Did you know?
The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.