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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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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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More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.
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The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.
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There are more bacteria in your mouth than there are people in the world.