|
|
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.
There are more nerve cells in one human brain than there are stars in the Milky Way.
More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.
Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.
Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.
![This lithograph by Currier and Ives gives an erroneous impression of the “battle.” Major Robert Ande](https://biology-forums.com/gallery/47/medium_376021_22_08_15_1_40_21_223431218.jpeg)
![Normal depolarization of the motor end plate: (a) Depolarization: Ach causes calcium to be released ...](https://biology-forums.com/gallery/28/medium_482573_27_04_17_11_54_32_284601945.jpeg)