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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?
Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.
Did you know?
On average, the stomach produces 2 L of hydrochloric acid per day.
Did you know?
The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.
Did you know?
Your heart beats over 36 million times a year.