Trivia from National Geographic

I read these today in National Geographic and the answers were surprising....worth sharing with all of you.

1. Your left lung is smaller than your right lung.
Ans: True. The left lung is a little smaller because there needs to be room for your heart.

2. Relative to size, the strongest muscle in your body is your big toe.
Ans: False. It's your tongue.

3. Your brain generates more electrical impulses in a single day than all of the world's telephones put together.
Ans: True - Imagine that.

4. An average human scalp has a million hairs.
Ans: False. But the average scalp does have 100,000 hairs.

5. Every square inch of the human body has an average of 3 million bacteria on it.
Ans: False. Would you believe the real number is 32 million?

So how many did you guess correctly?