ANATOMY

Detailed explanation-1: -The immune system of the body considers it as germs and starts releasing histamines against it. This alerts the brain and the person sneezes more the more it encounters the pollen grains. This reaction of the body is first line of defense.

Detailed explanation-2: -Germs, dust and pollen that get inside the nose are no match for the mighty sneeze. The sneeze is the body’s first line of defense against alien invaders such as viruses and bacteria.

Detailed explanation-3: -Sneezes protect your body by clearing the nose of bacteria and viruses, Kao explains. When something enters your nose or you encounter a trigger that sets off your “sneeze center” in your brain, located in the lower brain stem, signals are rapidly sent to tightly close your throat, eyes, and mouth.

Detailed explanation-4: -The belief that coughing or sneezing is a way of ejecting viruses is conjecture, and “it seems more likely that respiratory viruses… have evolved to make us cough and sneeze to transmit the virus in an effective way, ” says Professor Greg Towers (UCL Infection & Immunity).

Detailed explanation-5: -The immune system mistakes pollen for invading germs. This triggers the release of chemicals like histamine, which alert the brain a sneeze is needed to force the pollen out. If you inhale more pollen with each new breath, you’ll continue to sneeze.