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There are more nerve cells in one human brain than there are stars in the Milky Way.
Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.
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.
Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).
Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).
![The Canadian ballot is considerably simpler than the American ballot. Note there is nothing like a c](https://biology-forums.com/gallery/47/medium_262797_12_08_15_1_37_19_221871018.png)
![Percentage of Foreign-Born Whites and Native Whites of Foreign or Mixed Parentage in Total Populatio](https://biology-forums.com/gallery/47/medium_6_24_08_15_12_36_53_224201087.png)