Ashby (1960, section 11/5) offers three simple strategies for dealing with the same basic exercise-problem; and they have very different efficiencies: Suppose there are 1000 on/off switches which have to be set to a particular combination by random-based testing, each test to take one second.
Digestive Health. Subscribe to our Digestive Health e-newsletter to stay up to date on digestive health topics. Crohn's disease is an inflammatory bowel disease (IBD). It causes inflammation of the lining of your digestive tract, which can lead to abdominal pain, severe diarrhea, fatigue, weight loss and malnutrition. Inflammation caused by Crohn's disease can involve different areas of the digestive tract in different people.
When you have Crohn's disease, your body's immune system begins attacking healthy cells in your GI tract, causing inflammation. Because it is a disease of the immune system, Crohn's is classified medically as an autoimmune disorder.This means that your body is producing antibodies that work against itself.n addition to Crohn's, other autoimmune disorders include rheumatoid arthritis, ulcerative colitis, psoriasis, psoriatic arthritis, ankylosing spondylitis, lupus, and Graves' disease. Inflammatory bowel disease, or IBD, is a category of bowel disorders that includes both ulcerative colitis and Crohn's disease.