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Did you know?
Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.
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According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).
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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
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Asthma cases in Americans are about 75% higher today than they were in 1980.