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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?
Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.
Did you know?
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
Did you know?
There are approximately 3 million unintended pregnancies in the United States each year.
Did you know?
The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.