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Did you know?
Blood is approximately twice as thick as water because of the cells and other components found in it.
Did you know?
Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.
Did you know?
Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
Did you know?
If all the neurons in the human body were lined up, they would stretch more than 600 miles.
Did you know?
Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.