Strange but true facts about human

Here are some more Strange Facts about Human Being :

• ·        The sound you hear when you crack your knuckles is actually the sound of nitrogen gas bubbles bursting.  
• ·        The only part of the body that has no blood supply is the cornea in the eye. It takes in oxygen directly from the air.  
• ·        The pupil of the eye expands as much as 45 percent when a person looks at something pleasing.  
• ·        People with blue eyes see better in dark.  
• ·        We exercise at least 30 muscles when we smile. 
• ·        Our nose is our personal air-conditioning system: it warms cold air, cools hot air and filters impurities. 
• ·        Our brain is more complex than the most powerful computer and has over 100 billion nerve cells. 
• ·        People who ride on roller coasters have a higher chance of having a blood clot in the brain.  
• ·        When a person dies, hearing is usually the first sense to go.  
• ·  The animal responsible for the most human deaths world-wide is the mosquito.  
• ·    Right handed people live, on average, nine years longer than left-handed people.  
• ·        Chewing gum while peeling onions will keep you from crying.

O      Other Posts :  

. What Came First Egg or Chicken ?

. What did Neil Armstrong speak on moon?

. . Ancient Iindia.

p