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Author Question: Trade between nations can be traced back as far as ________. A) 2000 BC B) 500 BC C) 1200 D) ... (Read 110 times) |
To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.
Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
Asthma cases in Americans are about 75% higher today than they were in 1980.
On average, the stomach produces 2 L of hydrochloric acid per day.