|
|
Vaccines prevent between 2.5 and 4 million deaths every year.
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.
Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
There are 20 feet of blood vessels in each square inch of human skin.
Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).
![Healed bone fractures can provide clues about activities and fresh fractures can yield information a](https://biology-forums.com/gallery/47/medium_273688_23_02_15_8_21_32_209041120.jpeg)
![Many former slaves understood that illiteracy was an implement of bondage. The Freedmen’s Bureau bui](https://biology-forums.com/gallery/47/medium_376063_22_08_15_11_28_17_22367869.jpeg)