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Did you know?
If you could remove all of your skin, it would weigh up to 5 pounds.
Did you know?
If all the neurons in the human body were lined up, they would stretch more than 600 miles.
Did you know?
More than 4.4billion prescriptions were dispensed within the United States in 2016.
Did you know?
Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
Did you know?
Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.