|
|
Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."
The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.
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.
Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.
![The crania, and especially the faces of KNM-ER 1813 and 1470, differ enough that some scientists inc](https://biology-forums.com/gallery/47/medium_275510_22_02_15_6_06_44_207742049.jpeg)
![Native American casinos remain a topic of both controversy and envy. Shown here is Corey Two Crow as ...](https://biology-forums.com/gallery/27/medium_660366_14_04_17_2_21_31_278061029.png)