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Did you know?
Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.
Did you know?
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
Did you know?
There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
Did you know?
There are 20 feet of blood vessels in each square inch of human skin.
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.