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Could Picking Your Nose Lead to Dementia?
5 Apr
Summary
- Bacteria can travel from the nose to the brain causing Alzheimer's-like changes.
- Nose damage from picking may accelerate the pathway for bacteria to the brain.
- Good hand hygiene is suggested as a preventative measure for all.
Scientists are exploring a potential connection between nose picking and the development of Alzheimer's disease, emphasizing the importance of hygiene. Preliminary research, primarily conducted on mice, indicates that certain bacteria, such as Chlamydia pneumoniae, can travel directly from the nasal cavity to the brain. This pathway appears to be exacerbated if the nasal tissue is damaged, for example, through nose picking.
This bacterial invasion into the brain has been observed to trigger the deposition of amyloid-beta protein, a hallmark characteristic found in individuals with Alzheimer's disease. The speed at which these bacteria accessed the central nervous system in mice has surprised researchers, suggesting the nose could be a rapid entry point for pathogens. While these findings are based on animal models, they prompt further investigation into human neurological health.
Future studies are planned to confirm if similar processes occur in humans. However, given the current evidence, scientists advise against nose picking and plucking nasal hair due to the potential damage to protective nasal tissues. Improving hand hygiene, a practice underscored during the COVID-19 pandemic, is recommended as a straightforward preventative measure to reduce the risk of pathogen entry into the brain.
