My Brain

• Weighs about three pounds.

• Is mostly water (78%)
• Has 1 million MILES of nerve fibers.
• Has two hemispheres …
  • The left thinks in parts and sequences (like math and science)
  • The right thinks globally (like music and art)
• Is only 2% of my body weight
  • but uses 20% of my body’s energy.
• Gets energy from blood.
• Is thirsty for water and needs 8 glasses of it a day.
• Exercise gives my brain oxygen.

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