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Author Question: According to legend, who discovered the optical phenomenon called persistence of vision? a. ... (Read 296 times) |
Asthma cases in Americans are about 75% higher today than they were in 1980.
The average office desk has 400 times more bacteria on it than a toilet.
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.