Brain Facts

About what percentage of the brain is filled with water?

• 25%

• 50%

• 75%

• 100%

When you are laughing, how many areas of the brain are active?

• No areas of the brain are active

• 2 areas of the brain are active

• 4 areas of the brain are active

• 5 areas of the brain are active

The human brain produces enough electrical energy to do what?

• Light a lightbulb

• Run a small heater for 30 seconds

• Start the engine of a car

• Run a flashlight for 1 minute

The human brain develops until what age?

• Late teens

• Early twenties

• Mid-Thirties

• Late Forties

Of the thousands of mental thoughts a person has every day, what percent is negative - self critical, pessimistic and fearful?

• About 20%

• About 45%

• About 70

• About 90%

At birth, your brain was almost the same size as an adult brain and contained most of the brain cells for your whole life.

• True
• False

 The cerebral cortex grows thicker as you learn to use it.

• True
• False

Your brain uses _____% of the total oxygen in your body.

• 10%
• 20%
• 50%
• 100%

Human brains have gotten significantly __________ over the past 20,000 years.

• Smaller

• Larger

• Thinner

• Fatter

Just because you don’t remember your dreams doesn’t mean you don’t dream.

• True
• False