No, it's not truly possible to sneeze completely silently. While you can reduce the loudness of a sneeze, completely eliminating the sound is unlikely and potentially harmful.
Understanding the Sneeze
A sneeze is a powerful reflex action designed to expel irritants from your nasal passages. This forceful expulsion of air creates the characteristic "achoo" sound. The sound is a byproduct of the air rushing out at high speed, not the primary function. As noted in an article from The Conversation, "[t]he noise you make when you sneeze is a result of air escaping your nose and mouth at high speed." (http://theconversation.com/a-pediatric-nurse-explains-the-science-of-sneezing-160970). The force involved is significant; attempting to suppress it entirely can lead to complications.
Methods to Reduce Sneeze Loudness
While complete silence is improbable, several techniques can help lessen the sound:
- Sneezing into your elbow: This method, recommended by Dr. Gossett (https://shine365.marshfieldclinic.org/wellness/let-it-out-dont-hold-your-sneeze-in/), muffles the sound and reduces the spread of germs. It's the safest and most effective way to control the noise and potential transmission of illness.
- Pinching and rubbing your nose: As suggested by Professor Harvey (https://www.abc.net.au/news/2019-09-11/can-you-control-how-loud-you-sneeze/11472994), this technique might help slightly reduce the force and thus the sound, but its effectiveness varies among individuals.
- Controlled exhalation: Although not explicitly stated as a silencing technique, controlled breathing can be combined with the aforementioned methods to potentially reduce the force of the sneeze further. However, this is highly individual.
Dangers of Suppressing a Sneeze
Attempting to completely suppress a sneeze can be risky. Holding it in can cause various complications, including:
- Increased pressure in the head and chest: This can lead to discomfort or even more serious issues.
- Potential damage to blood vessels in the eyes, ears, or brain: The increased pressure may create stress on delicate tissues.
- Reduced effectiveness of clearing irritants: The primary function of the sneeze is compromised when suppressed.
As noted by Dr. Gossett, “blocking or ‘silently’ sneezing can cause harm, albeit in unlikely circumstances.” (https://shine365.marshfieldclinic.org/wellness/let-it-out-dont-hold-your-sneeze-in/) The potential risk outweighs any benefits of trying to completely silence a sneeze.
Conclusion
While strategies exist to reduce the volume of a sneeze, achieving complete silence is improbable and potentially harmful.