The sneeze occurs only when some foreign particles are collected by our sensors nervous. From that moment triggered the alert: nose mucus accumulates, our breathing muscles and squeeze your chest and then closed when the internal pressure of the air has become too high the airways open suddenly expelled with very high speed is the 'that the air particles.
sneeze The effort involves the many muscles, including those who are responsible for facial splash eye.
It is precisely the point ....... The fact that we close our eyes sneezing is a defense mechanism.
expelling foreign particles with speeds up to 160 km / hi our tear ducts poterebbero be seriously compromised! That is why we are inevitably led to close their eyes during a sneeze ....