I wanted to share some fabulous facts about the brain. Did you know that...
1. More electrical impulses are generated in one day by a single human brain than by all the telephones in the world?
2. The energy used by the brain is enough to light a 25 watt bulb?
3. Your brain is about 2% of your total body weight but uses 20% of your body's energy?
4. There are about 100 billion neurons (nerve cells) in the human brain, the same as the number of stars in our galaxy?
5. The slowest speed at which information travels between neurons is 416 km/h or 260 mph? That's as "slow" as today's supercar's top speed (the Bugatti Veyron clocked at 253 mph).
6. The brain can stay alive for 4 to 6 minutes without oxygen? After that, cells begin to die.
7. The human brain is the fattest organ? It may consist of at least 60% fat.
For a bonus point on a test, can you explain why the brain itself cannot feel pain?
