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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.
Did you know?
This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
Did you know?
The human body produces and destroys 15 million blood cells every second.
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Excessive alcohol use costs the country approximately $235 billion every year.
Did you know?
More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.