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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?
Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.
Did you know?
If you could remove all of your skin, it would weigh up to 5 pounds.
Did you know?
By definition, when a medication is administered intravenously, its bioavailability is 100%.
Did you know?
More than 4.4billion prescriptions were dispensed within the United States in 2016.