Sneezing is one of the most important defense mechanisms of upper and lower respiratory tracts. The speed of air from our mouth is very high during sneezing, which is naturally reflexive of our body. This speed of up to 140 km / h is caused by the high pressure in the body. During sneezing, there is a great pressure in the body, mainly in the abdominal region and the brain. Due to this pressure, dense blood flows to the heart veins. This serious pressure can cause very serious health problems if the sneeze is caught. When a person sneezes, the brain vessels expand, the tears and sinus channels open, the heart vessels expand, dead air is thrown out of the lungs that can not be thrown by normal breathing. The rest of the result of the relaxation of the heart is increased. In a sense, the heart stops in milliseconds and starts to work again.