Runners frequently launch snot rockets during jogs, raising questions about whether this habit is truly essential amid growing complaints in public parks this spring.
During a recent 5K run, a jogger ahead pinched one nostril and forcefully exhaled, propelling mucus through the air. This common sight, known as a snot rocket, creates sticky hazards for park visitors.
Science Behind Runny Noses in Athletes
A 2017 study in the International Journal of Otolaryngology reveals that 27% to 74% of athletes experience rhinitis, or runny noses, during exercise. Rapid breathing draws in more air through the nose, which warms and filters it for the lungs. Cold, dry conditions or pollen irritate nasal linings, boosting mucus production.
Dr. Adam Staten notes: ‘When you exercise, your breathing speeds up due to an increased demand for oxygen, which causes you to pull a lot more air through your nose and airways. The nose then warms and filters this air before it can reach the lungs, and mucus production is part of that process.’
No biological gender differences exist in mucus production. Allergies affect boys more in childhood but shift to women in adulthood, according to Dr. Mohammed Ditta. Non-allergic rhinitis from cold air, smells, pollution, or exercise strikes women more often, though behavior explains why men appear to snot rocket publicly.
Dr. Ditta adds: ‘If men seem more likely to do visible “snot rockets”, that is more plausibly down to behaviour, social norms, and exposure patterns rather than a biological factory making extra mucus.’
Runners Share Their Experiences
Online forums like Reddit’s r/Running buzz with discussions. User @curtisbbaker admits to spitting and snot rocketing due to constant phlegm: ‘I am like a faucet that does not turn off until I’m finished running. I would love to find a way to spit less while running, as it’s a bit gross when running with new friends that aren’t used to it.’
@MonarchGrad2011 reports their nose runs faster than their legs in cooler weather. In r/Marathon_Training, @Able-Drink3189 calls running inherently gross: ‘If you meet someone who’s run a marathon, chances are high they have pooped behind a dumpster, or in the woods… They send that snot rocket, they wipe it on their clothes if need be. So if you want to run, you gotta be comfortable being gross.’
Backlash from Fellow Runners and Park Users
Emma, 26, runs with her boyfriend, who accommodates her slower pace but disgusts her with snot rockets. ‘We’ll be on the side of the pavement and out of nowhere, he’ll take his fingers, block one nostril and exhale sharply, releasing a projectile clump of snot,’ she shares. She worries pedestrians will step in it and track it home, yet he persists despite her protests.
Etiquette expert Laura Windsor deems it unacceptable: ‘You should never do it in places where there are other people, first of all because it’s disgusting, and secondly because you’re making people feel uncomfortable. Etiquette is about making people around you feel comfortable.’
Jo Hayes, founder of EtiquetteExpert.org, recommends carrying a handkerchief or retreating to a bush away from paths. ‘Ensure it hasn’t landed on a walking path, or anywhere other humans will be. Further, ensure there is no residual snot on your face or body. We’re humans, not animals.’
She invokes the Golden Rule: ‘Do unto others as you would have them do unto you.’
Premier League footballers and swimmers have normalized it on pitches and in pools, with one Reddit user confessing to blowing noses into pool gutters. Park strollers should watch their step to avoid unexpected sticky encounters.
