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ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.
Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.
There are more nerve cells in one human brain than there are stars in the Milky Way.
The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.