People about to have surgery must tell their health care providers about all supplements they take.
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?
Your heart beats over 36 million times a year.
Did you know?
Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.
Did you know?
Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).
A hypothetical hybrid zone.
Animals and plants of the intertidal zone adhering to their rocky surface.
Male giraffe mounting a female. Only dominant males are generally able to mate.