1. The human brain contains about 86 billion neurons.

2. Your brain uses about 20% of your body's total energy, despite being just 2% of your weight.

3. The brain itself feels no pain - it has no pain receptors.

4. Nerve signals in the brain can travel at speeds up to 268 miles per hour.

5. Your brain generates enough electricity to power a small light bulb.

6. The brain is about 73% water, so even mild dehydration can affect concentration.

7. Short-term memory typically holds information for only 15 to 30 seconds without repetition.

8. The human brain keeps developing until about age 25.

9. Multitasking is a myth - the brain actually switches rapidly between tasks rather than doing them at once.

10. Your brain generates up to 70,000 thoughts every single day.