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Author Question: A rock climber has fallen 20 feet onto a hard surface. He is awake, but confused. He is pale and ... (Read 71 times) |
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).
Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
Asthma cases in Americans are about 75% higher today than they were in 1980.
The longest a person has survived after a heart transplant is 24 years.
The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.