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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.
Most strokes are caused when blood clots move to a blood vessel in the brain and block blood flow to that area. Thrombolytic therapy can be used to dissolve the clot quickly. If given within 3 hours of the first stroke symptoms, this therapy can help limit stroke damage and disability.
Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
The longest a person has survived after a heart transplant is 24 years.
The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.