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A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.
The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.
Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.
About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
There are 20 feet of blood vessels in each square inch of human skin.
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![In 1839 Mary Cragin, at the age of twenty-nine, became a convert to John Humphrey Noyes’s “communism](https://biology-forums.com/gallery/47/medium_375348_18_08_15_9_36_29_222991202.jpeg)