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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?
It is difficult to obtain enough calcium without consuming milk or other dairy foods.
Did you know?
The familiar sounds of your heart are made by the heart's valves as they open and close.
Did you know?
The FDA recognizes 118 routes of administration.
Did you know?
Anti-aging claims should not ever be believed. There is no supplement, medication, or any other substance that has been proven to slow or stop the aging process.