Facts about human body

1. The average human brain has about 100 billion nerve cells.
2. Nerve impulses to and from the brain travel as fast as 170 miles (274 km) per hour.
3. The thyroid cartilage is more commonly known as the Adams apple.
4.  The only joint-less bone in your body is the hyoid bone in your throat.
5.  It's impossible to sneeze with your eyes open.
6.  Your stomach needs to produce a new layer of mucus every two weeks or it would digest itself.
7.  It takes the interaction of 72 different muscles to produce human speech.
8. The average life of a taste bud is 10 days.
9. The average cough comes out of your mouth at 60 miles (96.5 km) per hour.
10. Relative to size, the strongest muscle in the body is the tongue.