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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).

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Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

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The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.

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Aspirin may benefit 11 different cancers, including those of the colon, pancreas, lungs, prostate, breasts, and leukemia.

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As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

Electronic digital thermometers are accurate and easy to read. Electronic digital thermometers are accurate and easy to read.
Change in Annual Precipitation Over Land, 1901-2010 Change in Annual Precipitation Over Land, 1901-2010
Brushing off to finish-back. In a quiet voice ask the person to sit up with legs off the side of the ... Brushing off to finish-back. In a quiet voice ask the person to sit up with legs off the side of the ...
How to solve any percent change problem How to solve any percent change problem
Ecological sensitivity to climate change Ecological sensitivity to climate change
The ability of a community to cope, adapt to, and mitigate the accelerating impact of climate change The ability of a community to cope, adapt to, and mitigate the accelerating impact of climate change
Video: Cellular Defects - Osteoblasts, Osteoclasts and Osteocytes

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