• The human brain has about 100 billion neurons.
  • Your brain uses 20% of your blood.
  • The brain has no pain. Because there are no nerves that register pain within the brain itself, neurosurgeons can probe the brain while a patient is conscious.
  • A newborn baby's brain grows almost 3 times in the course of the first year.
  • Albert Einstein's brain was smaller than average, because he was smaller than average.