is a wonderful cartoon! It gives us the opportunity to consider the difference between weak and strong boundary conditions. In particular here, if you sneeze with weak boundary conditions (muscles relaxed) all you get is a great exhaust. If however, you tense your muscles and then sneeze all that energy is contained within the body and you run a very substantial chance of either rupturing something or having a stroke.
So don’t stifle that sneeze. You have a choice between being kulturny and discorporated. Choose wisely!
Newtonmas Mitzvah from SCP. Don’t be a Bog; Take it and Learn. And remember, pay no attention to adults who tell you maths are worthless.