health in supermax prisons

“It is a closed-off world designed to isolate inmates from social and environmental stimuli, with the ultimate purpose of causing mental illness and chronic physical conditions such as diabetes, heart disease and arthritis,” he wrote in one letter to The Gazette of Colorado Springs.

http://www.washingtonpost.com/wp-dyn/content/article/2006/12/10/AR2006121000410.html

I do not think that his statement is true. He does know more about prison than I do, though.