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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?
The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
Did you know?
People about to have surgery must tell their health care providers about all supplements they take.
Did you know?
Medication errors are three times higher among children and infants than with adults.
Did you know?
The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.