Rheumatoid arthritis (RA) is an autoimmune disease that causes chronic inflammation of the joints. Autoimmune diseases are illnesses that occur when the body's tissues are mistakenly attacked by their own immune system.
What role did the bison or buffalo play in the culture of the Plains Indians? The bison were an important source of fur, food, and shelter for the Plains Indians. They used every part of the animals they killed. Bison were also an important part of their culture.
Like all Plains People, the Sioux used all the parts of the animals they killed. Nothing was wasted. Hunters brought back deer, elk, moose, sheep, beavers, mountain lions, coyotes, and rabbits to name a few. Animals provided food, clothing, and bags to hold arrows, medicines, and other goods. Even the tiniest scraps were kept and used over and over.