|
|
The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.
On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
Blood is approximately twice as thick as water because of the cells and other components found in it.
Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.
The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.
![Chimpanzees in nearby Mahale National Park practice a different grooming style: they clasp hands whi](https://biology-forums.com/gallery/47/medium_269691_26_01_15_5_55_24_204391100.jpeg)
![skeletal muscle consists of a group of fibers held together by connective tissue. It is enclosed in ...](https://biology-forums.com/gallery/47/medium_665046_01_03_17_9_12_00_261871967.jpeg)