|
|
There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.
Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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.
Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.