Tag: diabetes

WHAT DOES THE ENVIRONMENT HAVE TO DO WITH DISEASES THAT AFFECT THE IMMUNE SYSTEM?

The rise in recent decades of diseases such as inflammatory bowel disease and rheumatoid arthritis suggests that factors in the environment are contributing.

In 1932, New York gastroenterologist Burrill Crohn described an unusual disease in 14 adults. The patients had bouts of abdominal pain, bloody diarrhea, and lesions and scars on the bowel wall. Doctors in other parts of North America and Europe were seeing it in their patients, too. They called the rare condition Crohn’s disease. After World War II, the number of new people getting inflammatory bowel disease (Crohn’s disease and a related condition called ulcerative colitis) skyrocketed across the West in countries such as the U.S., Canada and the UK. In the last three decades, IBD has begun to crop up in newly industrialized parts of the world like Hong Kong and China’s big cities.