|
|
Did you know?
The human body produces and destroys 15 million blood cells every second.
Did you know?
The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.
Did you know?
There are more nerve cells in one human brain than there are stars in the Milky Way.
Did you know?
The horizontal fraction bar was introduced by the Arabs.
Did you know?
The U.S. Pharmacopeia Medication Errors Reporting Program states that approximately 50% of all medication errors involve insulin.